Allow sharding for Dagger compiler tests. #3910

Job	Run time
Validate Dagger version	18s
Bazel tests	30m 43s
Bazel build	8m 18s
Artifact Android emulator tests (API 30)	17m 23s
Test Hilt Gradle plugin	12m 56s
Artifact Java local tests	10m 18s
Artifact Android local tests (AGP 7.0.0)	9m 5s
Artifact Android local tests (AGP 7.1.2)	12m 20s
Artifact Android emulator tests (API ${{ matrix.api-level }})	0s
Build Hilt Gradle plugin against latest AGP version	0s
Publish snapshot	0s
Clean up GitHub Action caches	0s
	1h 41m 21s

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