Fixing android build problem on Flutter 2.10

[irvine5k]

Description

Flutter 2.10 added support for foldable Android devices, and it relies on Android SDK API version 31's AndroidX library dependency of: androidx.window:window-java:1.0.0

The build fails because this new AndroidX dependency requires Android compileSdkVersion of 31 or higher.

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':wakelock:checkDebugAndroidTestAarMetadata'.
> Multiple task action failures occurred:
   > A failure occurred while executing com.android.build.gradle.internal.tasks.CheckAarMetadataWorkAction
      > The minCompileSdk (31) specified in a
        dependency's AAR metadata (META-INF/com/android/build/gradle/aar-metadata.properties)
        is greater than this module's compileSdkVersion (android-29).
        Dependency: androidx.window:window-java:1.0.0-beta04.
        AAR metadata file: /home/circleci/.gradle/caches/transforms-3/2e49bf5320b03587958ef76824ad50b9/transformed/jetified-window-java-1.0.0-beta04/META-INF/com/android/build/gradle/aar-metadata.properties.
   > A failure occurred while executing com.android.build.gradle.internal.tasks.CheckAarMetadataWorkAction
      > The minCompileSdk (31) specified in a
        dependency's AAR metadata (META-INF/com/android/build/gradle/aar-metadata.properties)
        is greater than this module's compileSdkVersion (android-29).
        Dependency: androidx.window:window:1.0.0-beta04.
        AAR metadata file: /home/circleci/.gradle/caches/transforms-3/b4515d5f332e057eb16b3d70b87c97b1/transformed/jetified-window-1.0.0-beta04/META-INF/com/android/build/gradle/aar-metadata.properties.

Example of a package updating it to fix android build
Example of Stack Overflow Question around the problem

[creativecreatorormaybenot]

LGTM