chore: bump arm64 GCC to 9.4

Bump the arm64 cross compile image to `edge`.

CHANGELOG.md

@@ -5,6 +5,7 @@
 **Internal**:
 
 - Bumped `sentry-native` submodule to v0.7.8. ([#3940](https://github.com/getsentry/relay/pull/3940))
+- Bumped arm64 cross compile image to `edge` tag. ([#3943](https://github.com/getsentry/relay/pull/3943))
 
 ## 24.8.0
 

Cross.toml

@@ -1,12 +1,19 @@
 [build]
 pre-build = [
-    # Use azure mirrors for faster downloads.
+    # Use Azure mirrors for faster downloads
     "sed -i -e 's/archive.archive.ubuntu.com/azure.archive.ubuntu.com/' /etc/apt/sources.list",
     "sed -i -e 's/security.archive.ubuntu.com/azure.archive.ubuntu.com/' /etc/apt/sources.list",
-    "apt-get update && apt-get --assume-yes install libclang-8-dev clang-8",
+
+    # Enable multiarch and install the necessary dependencies
+    "dpkg --add-architecture $CROSS_DEB_ARCH",
+    "apt-get update",
+    "apt-get -y install libclang-8-dev clang-8 zlib1g-dev:$CROSS_DEB_ARCH",
+
     "curl -sL https://sentry.io/get-cli/ | sh",
 ]
+env.passthrough = ["CMAKE_TOOLCHAIN_FILE_aarch64_unknown_linux_musl"]
 
 [target.aarch64-unknown-linux-gnu]
 # We're using a nightly `cross`, let's still use a stable image.
-image = "ghcr.io/cross-rs/aarch64-unknown-linux-gnu:0.2.5"
+image = "ghcr.io/cross-rs/aarch64-unknown-linux-gnu:edge"
+env.passthrough = ["CMAKE_TOOLCHAIN_FILE_aarch64_unknown_linux_gnu"]