fix: add executable permission to gradlew and update workflow

Author: ptthanh02

.github/workflows/release.yml

@@ -19,6 +19,9 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Validate Gradle Wrapper
+        uses: gradle/actions/wrapper-validation@v3
+
       - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
@@ -29,7 +32,9 @@ jobs:
         uses: gradle/actions/setup-gradle@v3
 
       - name: Make gradlew executable
-        run: chmod +x gradlew
+        run: |
+          chmod +x gradlew
+          git update-index --chmod=+x gradlew
 
       - name: Extract version from build.gradle
         id: get_version