Update gradle.yml

.github/workflows/gradle.yml

@@ -20,7 +20,7 @@ jobs:
         java-version: 21
 
     - name: Validate the Gradle wrapper
-    - uses: gradle/wrapper-validation-action@v2
+      uses: gradle/wrapper-validation-action@v2
 
     - name: Grant execute permission for gradle
       run: chmod +x gradlew