Tracking bug for all bugs related to supporting android 16.

https://github.com/flutter/flutter/blob/master/docs/platforms/android/New-Android-version.md

Update CI to execute tests against Android API 16

• upload new android sdk, gradle version, and Java version to CIPD
• [WIP] [Android 16] Bump AVD and SDK to API 36 in Packages CI packages#9414
• [Android 16] Upgrade to an API 36 AVD in Engine CI #169124
• [Android 16] Updated emu_unstable to 36 AVD in Framework CI #165926
• [Blocked due to Android 16 emulators do not display platform views across many modes (API 36) #170024]
  [Android 16] Updated linux_android_emu to a 36 AVD in framework CI #169121
• [Android 16] Bumped Android Defaults in Engine #166796
• [Android 16] Bumped Android Defaults in Framework #166464
• [Android 16] Bumping Framework Default TargetSdk to 36 #168577
• [Android 16] Bumped Android Defaults in Example Plugins packages#9241
• [Android 16] Bumped create_all_packages_command CompileSdk to 36 packages#9293
• Update robolectric to a version compatible with API 35 for engine, framework, packages (all have already been completed).
• [Blocked for API 36] Update robolectric to a version compatible with new SDK in engine, framework, packages.
• [Blocked] add a 36 physical device to CI for firebase lab test
• Add a 36 physical devices (pixels and mokeys)

Update Java version used an in CI to test against Android API 16 (Note: This task is not necessary to complete this umbrella issue, but it will need to be completed in the future)

• Audit Java 21 support and update ci to Java 21 #163158
• [Android 16] Update Java Versions to 21 in Framework CI #165210
• [Android 16] Update mockito to 5.17.0 from 4.7.0, prework for android 36 support #167573
• [Android 16] Updating Engine to Use Java 21 #167776
• Update packages CI to use Java 21

[Blocked due to /issues/170024] Android api that Virtual display relies on is deprecated in android 16

• Figure out what exact api is being removed.
• Modify code on android api 36 to not call that api
• Modify virtual display dart docs to indicate they will not work on android api 36
• Modify other documentation for platform views that virtual display will not work on android api 36

Misc

• Support Android 16 orientation change behaviors #162724
• Update sample project to compile and target sdk 36 #165161

Docs

• add uploading new java version to CIPD docs
• update testing against new emulator docs
• Update docs/platforms/android/New-Android-version.md to reference the correct engine location and give new example prs of updating.