Release 5.1.1

🔧 Native SDK Dependency Updates Only

Update Android SDK from 5.1.6 to 5.1.8

• Fix crash with EventProducer's fire events in OneSignal/OneSignal-Android-SDK#2034
• 🔋 Battery improvements
  • Possibly resolves issues of "Egregious levels of battery drain"
  • Prevent OperationRepo from continuously pulling when empty (OneSignal/OneSignal-Android-SDK#2033)
  • Add backoff to OperationRepo when retrying network calls (OneSignal/OneSignal-Android-SDK#2017)
  • Limit refresh User and GET IAMs to foreground (OneSignal/OneSignal-Android-SDK#2036)
• Fixes network call batching not waiting the full 5 seconds in most cases to reduce the total number of REST API calls to OneSignal.
• Issue with external_id being skipped and updates stop if something updates the User (such as addTag) shortly before login is called OneSignal/OneSignal-Android-SDK#2046
• For full changes, see the native release notes

Update iOS SDK from 5.1.3 to 5.1.4

• 5.1.4 Release Notes
• The XCFrameworks in this release is signed to help keep your apps secure
• Fix rare scenario where login requests are stuck and prevent the SDK from making updates (OneSignal/OneSignal-iOS-SDK#1398)