Update setup-gradle GHA to v4

Author: rickclephas

.github/workflows/release-kotlin.yaml

@@ -26,15 +26,13 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Gradle Wrapper Validation
-        uses: gradle/wrapper-validation-action@v2
       - name: Setup JDK
         uses: actions/setup-java@v4
         with:
           distribution: 'zulu'
           java-version: '17'
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v3
+        uses: gradle/actions/setup-gradle@v4
       - name: Cache Konan
         uses: ./.github/actions/cache-konan
       - name: Publish to Maven Central