Add CI workflows for `test` workspace #8724

Job	Run time
Prepare	3s
Build native (x86_64, x86_64, x86_64-linux-android)	3m 35s
Build native (i686, x86, i686-linux-android)	3m 41s
Generate relay list	1m 20s
Build native (aarch64, arm64-v8a, aarch64-linux-android)	3m 34s
Build native (armv7, armeabi-v7a, armv7-linux-androideabi)	3m 42s
Build app and run unit tests	6m 52s
Run instrumented tests (app)	5m 38s
Run instrumented tests (mockapi)	1m 19s
Run instrumented firebase tests	0s
	29m 44s

Provide feedback