Update gradle/actions action to v4

.forgejo/workflows/pull_request.yml

@@ -15,7 +15,7 @@ jobs:
         distribution: 'zulu'
         java-version: '17'
     - name: Validate Gradle Wrapper
-      uses: https://git.wbrawner.com/gradle/actions/wrapper-validation@v3
+      uses: https://git.wbrawner.com/gradle/actions/wrapper-validation@v4
   unit_tests:
     name: Run Unit Tests
     runs-on: ubuntu-latest
@@ -31,7 +31,7 @@ jobs:
       - name: Setup Android SDK
         uses: https://git.wbrawner.com/android-actions/setup-android@v3
       - name: Run unit tests
-        uses: https://git.wbrawner.com/gradle/actions/setup-gradle@v3
+        uses: https://git.wbrawner.com/gradle/actions/setup-gradle@v4
         with:
             arguments: check
       - name: Publish JUnit Results