Run android emulator on ubuntu build agent #793

Job	Run time
build-ios	40m 56s
build-js	4m 12s
jobEmulatorMatrixSetup	1m 1s
build-android (:firebase-analytics:gradleManagedDeviceDebugAndroidTest --no-parallel --max-worker...	4m 29s
build-android (:firebase-app:gradleManagedDeviceDebugAndroidTest --no-parallel --max-workers=1 -P...	3m 54s
build-android (:firebase-auth:gradleManagedDeviceDebugAndroidTest --no-parallel --max-workers=1 -...	3m 56s
build-android (:firebase-config:gradleManagedDeviceDebugAndroidTest --no-parallel --max-workers=1...	4m 31s
build-android (:firebase-crashlytics:gradleManagedDeviceDebugAndroidTest --no-parallel --max-work...	4m 50s
build-android (:firebase-database:gradleManagedDeviceDebugAndroidTest --no-parallel --max-workers...	4m 30s
build-android (:firebase-firestore:gradleManagedDeviceDebugAndroidTest --no-parallel --max-worker...	4m 3s
build-android (:firebase-messaging:gradleManagedDeviceDebugAndroidTest --no-parallel --max-worker...	3m 59s
build-android (:firebase-perf:gradleManagedDeviceDebugAndroidTest --no-parallel --max-workers=1 -...	4m 18s
build-android (:firebase-storage:gradleManagedDeviceDebugAndroidTest --no-parallel --max-workers=...	3m 53s
	1h 28m 32s

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