add permissions for playground

.github/workflows/java-playground-publish.yml

@@ -9,6 +9,7 @@ on:
 jobs:
   build-and-push-image:
     runs-on: ubuntu-latest
+    permissions: write-all
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3
@@ -24,10 +25,9 @@ jobs:
       - name: Setup Gradle
         uses: gradle/[email protected]
 
-      - name: Run tests with Gradle
+      - name: Build with Gradle
         uses: gradle/[email protected]
         with:
-          # build includes tests
           arguments: |
             :java:playground:build
             --console=plain