Switch to gradle/actions/wrapper-validation@v3 GHA

The previous Action is being replaced by this one.

Resolves gh-674

Author: shakuzen

.github/workflows/gradle-wrapper-validation.yml

@@ -7,4 +7,4 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/[email protected]
-      - uses: gradle/wrapper-validation-action@v2
+      - uses: gradle/actions/wrapper-validation@v3