Update retrofitVersionLatest to v2.9.0 - abandoned

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.squareup.retrofit2:adapter-rxjava	2.1.0 -> 2.9.0
com.squareup.retrofit2:converter-scalars	2.1.0 -> 2.9.0
com.squareup.retrofit2:converter-gson	2.1.0 -> 2.9.0
com.squareup.retrofit2:retrofit	2.1.0 -> 2.9.0

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Release Notes

square/retrofit

v2.9.0

Compare Source

• New: RxJava 3 adapter!

  The Maven coordinates are com.squareup.retrofit2:adapter-rxjava3.

  Unlike the RxJava 1 and RxJava 2 adapters, the RxJava 3 adapter's create() method will produce asynchronous HTTP requests by default. For synchronous requests use createSynchronous() and for synchronous on a scheduler use createWithScheduler(..).

v2.8.2

• Fix: Detect running on the Android platform by using system property rather than the presence of classes.
  This ensures that even when you're running on the JVM with Android classes present on the classpath you
  get JVM semantics.
• Fix: Update to OkHttp 3.14.9 which contains an associated Android platform detection fix.

v2.8.1

• Fix: Do not access MethodHandles.Lookup on Android API 24 and 25. The class is only available
  on Android API 26 and higher.

v2.8.0

• New: Add Call.timeout() which returns the okio.Timeout of the full call.
• Fix: Change Call.awaitResponse() to accept a nullable response type.
• Fix: Support default methods on Java 14+. We had been working around a bug in earlier versions of
  Java. That bug was fixed in Java 14, and the fix broke our workaround.

v2.7.2

• Fix: Update to OkHttp 3.14.7 for compatibility with Android R (API 30).

v2.7.1

• Fix: Support 'suspend' functions in services interfaces when using 'retrofit-mock' artifact.

v2.7.0

This release changes the minimum requirements to Java 8+ or Android 5+.
See this blog post for more information on the change.

• New: Upgrade to OkHttp 3.14.4. Please see its changelog for 3.x.
• Fix: Allow service interfaces to extend other interfaces.
• Fix: Ensure a non-null body is returned by Response.error.

v2.6.4

• Fix: Support 'suspend' functions in services interfaces when using 'retrofit-mock' artifact.

v2.6.3

• Fix: Change mechanism for avoiding UndeclaredThrowableException in rare cases from using yield
  an explicit dispatch which ensures that it will work even on dispatchers which do not support yielding.

v2.6.2

• Fix: Avoid IOExceptions being wrapped in UndeclaredThrowableException in rare cases when using
  Response<..> as a return type for Kotlin 'suspend' functions.

v2.6.1

• Fix: Avoid IOExceptions being wrapped in UndeclaredThrowableException in rare cases.
• Fix: Include no-content ResponseBody for responses created by Response.error.
• Fix: Update embedded R8/ProGuard rules to not warn about nested classes used for Kotlin extensions.

v2.6.0

• New: Support suspend modifier on functions for Kotlin! This allows you to express the asynchrony of HTTP requests
  in an idiomatic fashion for the language.

  @​GET("users/{id}")
  suspend fun user(@​Path("id") id: Long): User

  Behind the scenes this behaves as if defined as fun user(...): Call<User> and then invoked with Call.enqueue.
  You can also return Response<User> for access to the response metadata.

  Currently this integration only supports non-null response body types. Follow
  issue 3075 for nullable type support.

• New: @Tag parameter annotation for setting tags on the underlying OkHttp Request object. These can be read
  in CallAdapters or OkHttp Interceptors for tracing, analytics, varying behavior, and more.

• New: @SkipCallbackExecutor method annotation will result in your Call invoking its Callback on the
  background thread on which the HTTP call was made.

• New: Support OkHttp's Headers type for @HeaderMap parameters.

• New: Add Retrofit.Builder.baseUrl(URL) overload.

• Fix: Add embedded R8/ProGuard rule which retains Retrofit interfaces (while still allowing obfuscation). This
  is needed because R8 running in 'full mode' (i.e., not in ProGuard-compatibility mode) will see that there are
  no subtypes of these interfaces and rewrite any code which references instances to null.

• Fix: Mark HttpException.response() as @Nullable as serializing the exception does not retain this instance.

• Fix: Fatal errors (such as stack overflows, out of memory, etc.) now propagate to the OkHttp Dispatcher thread
  on which they are running.

• Fix: Ensure JAX-B converter closes the response body when an exception is thrown during deserialization.

• Fix: Ignore static methods when performing eager validation of interface methods.

• Fix: Ensure that calling source() twice on the ResponseBody passed to a Converter always returns the same
  instance. Prior to the fix, intermediate buffering would cause response data to be lost.

v2.5.0

• New: Built-in support for Kotlin's Unit type. This behaves the same as Java's Void where the body
  content is ignored and immediately discarded.
• New: Built-in support for Java 8's Optional and CompletableFuture types. Previously the 'converter-java8'
  and 'adapter-java8' dependencies were needed and explicitly adding Java8OptionalConverterFactory and/or
  Java8CallAdapterFactory to your Retrofit.Builder in order to use these types. Support is now built-in and
  those types and their artifacts are marked as deprecated.
• New: Invocation class provides a reference to the invoked method and argument list as a tag on the
  underlying OkHttp Call. This can be accessed from an OkHttp interceptor for things like logging, analytics,
  or metrics aggregation.
• New: Kotlin extension for Retrofit which allows you call create passing the interface type only as
  a generic parameter (e.g., retrofit.create<MyService>()).
• New: Added Response.success overload which allows specifying a custom 2xx status code.
• New: Added Calls.failure overload which allows passing any Throwable subtype.
• New: Minimal R8 rules now ship inside the jar requiring no client configuration in the common case.
• Fix: Do not propagate fatal errors to the callback. They are sent to the thread's uncaught
  exception handler.
• Fix: Do not enqueue/execute an otherwise useless call when the RxJava type is disposed by onSubscribe.
• Fix: Call RxJavaPlugins assembly hook when creating an RxJava 2 type.
• Fix: Ensure both the Guava and Java 8 Optional converters delegate properly. This ensures that converters
  registered prior to the optional converter can be used for deserializing the body type.
• Fix: Prevent @Path values from participating in path-traversal. This ensures untrusted input passed as
  a path value cannot cause you to make a request to an un-intended relative URL.
• Fix: Simple XML converter (which is deprecated) no longer wraps subtypes of RuntimeException
  or IOException when it fails.
• Fix: Prevent JAXB converter from loading remote entities and DTDs.
• Fix: Correctly detect default methods in interfaces on Android (API 24+). These still do not work, but
  now a correct exception will be thrown when detected.
• Fix: Report more accurate exceptions when a @QueryName or @QueryMap precedes a @Url parameter.
• Update OkHttp dependency to 3.12.

v2.4.0

• New: Retrofit.Builder exposes mutable lists of the added converter and call adapter factories.
• New: Call adapter added for Scala's Future.
• New: Converter for JAXB replaces the now-deprecated converter for Simple XML Framework.
• New: Add Java 9 automatic module names for each artifact corresponding to their root package.
• Fix: Do not swallow Errors from callbacks (usually OutOfMemoryError).
• Fix: Moshi and Gson converters now assert that the full response was consumed. This prevents
  hiding bugs in faulty adapters which might not have consumed the full JSON input which would
  then cause failures on the next request over that connection.
• Fix: Do not conflate OkHttp Call cancelation with RxJava unsubscription/disposal. Prior to
  this change, canceling of a Call would prevent a cancelation exception from propagating down
  the Rx stream.

v2.3.0

• Retrofit now uses @Nullable to annotate all possibly-null values. We've
  added a compile-time dependency on the JSR 305 annotations. This is a
  [provided][maven_provided] dependency and does not need to be included in
  your build configuration, .jar file, or .apk. We use
  @ParametersAreNonnullByDefault and all parameters and return types are
  never null unless explicitly annotated @Nullable.

  Warning: this release is source-incompatible for Kotlin users.
  Nullability was previously ambiguous and lenient but now the compiler will
  enforce strict null checks.

• New: Converters added for Java 8's and Guava's Optional which wrap a potentially-nullable
  response body. These converters still rely on normal serialization library converters for parsing
  the response bytes into an object.

• New: String converters that return null for an @Query or @Field parameter are now skipped.

• New: The mock module's NetworkBehavior now throws a custom subclass of IOException to more
  clearly indicate the exception's source.

• RxJava 1.x converter updated to 1.3.0 which stabilizes the use of Completable.

• Fix: Add explicit handling for OnCompleteFailedException, OnErrorFailedException, and
  OnErrorNotImplementedException for RxJava 1.x to ensure they're correct delivered to the
  plugins/hooks for handling.

• Fix: NoSuchElementException thrown when unsubscribing from an RxJava 1.x Single.

v2.2.0

• RxJava 2.x is now supported with a first-party 'adapter-rxjava2' artifact.
• New: @QueryName annotation allows creating a query parameter with no '=' separator or value.
• New: Support for messages generated by Protobuf 3.0 or newer when using the converter for Google's
  protobuf.
• New: RxJava 1.x call adapter now correctly handles broken subscribers whose methods throw exceptions.
• New: Add toString() implementations for Response and Result.
• New: The Moshi converter factory now offers methods for enabling null serialization and lenient
  parsing.
• New: Add createAsync() to RxJava 1.x call adapter factory which executes requests using
  Call.enqueue() using the underlying HTTP client's asynchronous support.
• New: NetworkBehavior now allows setting an error percentage and returns HTTP errors when triggered.
• HttpException has been moved into the main artifact and should be used instead of the versions
  embedded in each adapter (which have been deprecated).
• Promote the response body generic type on CallAdapter from the adapt method to the enclosing
  class. This is a source-incompatible but binary-compatible change which is only relevant if you are
  implementing your own CallAdapters.
• Remove explicit handling of the now-defunct RoboVM platform.
• Fix: Close response on HTTP 204 and 205 to avoid resource leak.
• Fix: Reflect the canceled state of the HTTP client's Call in Retrofit's Call.
• Fix: Use supplied string converters for the String type on non-body parameters. This allows user
  converters to handle cases such as when annotating string parameters instead of them always using
  the raw string.
• Fix: Skip a UTF-8 BOM (if present) when using the converter for Moshi.

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