Update Gradle Action

Author: PrzemyslawSwiderski

.github/workflows/post-release-updates.yml

@@ -31,7 +31,7 @@ jobs:
 
       # Setup Gradle
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v3
+        uses: gradle/actions/setup-gradle@v4
         with:
           gradle-home-cache-cleanup: true