Add additional context to DaggerSuperficialValidation#UnknownErrorType. #5176

Job	Run time
Validate Dagger version	14s
Gradle build	13m 8s
Bazel tests	21m 47s
Bazel build	4m 23s
Test Hilt Gradle plugin	8m 30s
Artifact Java local tests	3m 26s
Artifact Android local tests (AGP 8.1.1)	9m 34s
Artifact verification tests	11m 45s
Artifact Android emulator tests (API ${{ matrix.api-level }})	0s
Build Hilt Gradle plugin against latest AGP version	0s
Clean up GitHub Action caches	8s
Publish snapshot	0s
	1h 12m 55s

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