removing JDK seup and gradle wrapper validation as not needed

.gitea/workflows/test_image_build_push.yml

@@ -34,13 +34,6 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - name: JDK setup
-        uses: actions/setup-java@v4
-        with:
-          distribution: 'zulu'
-          java-version: '17'
-      - name: Validate Gradle Wrapper
-        uses: gradle/actions/wrapper-validation@v3
       - name: Create and push tag
         run: |
           echo "NEW_VERSION=${{ needs.tag.outputs.new_version }}"