Switch to setup-gradle action v4

Author: aNNiMON

.github/workflows/gradle.yml

@@ -20,7 +20,7 @@ jobs:
         with:
           java-version: ${{ matrix.java }}
           distribution: 'temurin'
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
       - name: Run tests
-        uses: gradle/actions/setup-gradle@v3
-        with:
-          arguments: test
+        run: ./gradlew test