Update Java CI workflow

to only publish test reports when there is a failure.

Author: puneetbehl

.github/workflows/gradle.yml

@@ -36,6 +36,7 @@ jobs:
         run: |
           ./gradlew --no-daemon --refresh-dependencies clean check
       - name: Publish Test Report
+        if: failure()
         uses: scacap/action-surefire-report@v1
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}