Use gradle-build-action in starter workflows (#1237)

The `gradle-build-action` provides enhanced execution and caching functionality for Gradle.
This change updates starter workflows to use `v2.0.0` of `gradle-build-action`.

Improvements over invoking Gradle directly include:
- Easier to run the workflow with a particular Gradle version
- More sophisticated and more efficient caching of Gradle User Home between invocations
- Detailed reporting of cache usage and cache configuration options
- Automatic capture of Build Scan links

Co-authored-by: Josh Gross <[email protected]>

ci/gradle.yml

@@ -1,3 +1,7 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
 # This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
 # For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
 
@@ -21,8 +25,7 @@ jobs:
       with:
         java-version: '11'
         distribution: 'adopt'
-        cache: gradle
-    - name: Grant execute permission for gradlew
-      run: chmod +x gradlew
     - name: Build with Gradle
-      run: ./gradlew build
+      uses: gradle/gradle-build-action@4137be6a8bf7d7133955359dbd952c0ca73b1021
+      with:
+        arguments: build