[fix] CI/CD 수정

Added step to grant execute permission for Gradle wrapper.

Author: subin930

.github/workflows/cicd.yml

@@ -34,6 +34,10 @@ jobs:
     - name: Setup Gradle
       uses: gradle/actions/setup-gradle@af1da67850ed9a4cedd57bfd976089dd991e2582 # v4.0.0
 
+    # 권한 부여
+    - name: Grant execute permission for Gradle wrapper
+      run: chmod +x ./gradlew
+
     # 빌드 
     - name: Build with Gradle Wrapper
       run: ./gradlew clean build