Add Github CI step and action for building with Gradle #5045

Job	Run time
Validate Dagger version	10s
Gradle build	1m 2s
Bazel build	3m 34s
Bazel tests	5m 34s
Test Hilt Gradle plugin	8m 17s
Artifact Android local tests (AGP 8.1.1)	12m 50s
Artifact Java local tests	3m 29s
Artifact verification tests	12m 0s
Artifact Android emulator tests (API ${{ matrix.api-level }})	0s
Build Hilt Gradle plugin against latest AGP version	0s
Clean up GitHub Action caches	9s
Publish snapshot	0s
	47m 5s

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