Update Gradle wrapper validation action to use gradle/actions/wrapper-validation@v4

Co-Authored-By: Toshihiro Nakamura <[email protected]>

Author: devin-ai-integration[bot]

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

@@ -7,4 +7,4 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: gradle/wrapper-validation-action@v3
+      - uses: gradle/actions/wrapper-validation@v4