Validate the Gradle wrapper.

Author: josealonso

.github/workflows/java.yml

@@ -15,6 +15,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+      - uses: actions/wrapper-validation-action@v1
       - uses: actions/setup-java@v3
         with:
           java-version: 17