Experimented with and monitored for flakiness using a 36 emulator for linux_android_emu_unstable. After >= 200 commits, it looks like this test target is stable. Since we have confirmed the 36 emulator for linux_android_emu_unstable is stable, we can update the linux_android_emu to use the same emulator.

Update: Ran into API 36 emulator issue where multiple platform view modes fail here that breaks integration tests under the android_engine_vulkan_tests test target. To continue with the Android 16 AVD update, the android_engine_vulkan_tests test target is now using configurations from the newly created platform property linux_android_emu_vulkan_stable, which is configured to use an API 35 AVD. linux_android_emu is updated to use a API 36 AVD. All test targets using the linux_android_emu platform property configurations will use an API 36 AVD.

Partially Addresses #163071

Pre-launch Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
• I read the Tree Hygiene wiki page, which explains my responsibilities.
• I read and followed the Flutter Style Guide, including Features we expect every widget to implement.
• I signed the CLA.
• I listed at least one issue that this PR fixes in the description above.
• I updated/added relevant documentation (doc comments with ///).
• I added new tests to check the change I am making, or this PR is test-exempt.
• I followed the breaking change policy and added Data Driven Fixes where supported.
• All existing and new tests are passing.

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