Combine java-toolchain entry definitions

- Remove configuration parameter for cache-entry-definitions. This allows richer modelling of extracted entries.
- Include both *.zip and *.tar.gz in entry definition for java-toolchains.

.github/workflows/integTest-caching-gradle-home.yml

@@ -72,9 +72,10 @@ jobs:
       uses: actions/checkout@v2
     - name: Setup Gradle with no extracted cache entries restored
       uses: ./
+      env: 
+        GRADLE_BUILD_ACTION_NO_EXTRACTED_ENTRIES: true
       with:
         cache-read-only: true
-        gradle-home-extracted-cache-entries: '[]'
     - name: Check executee Gradle build
       working-directory: __tests__/samples/groovy-dsl
       run: ./gradlew test