chore: github actions add chmod

Author: jang-namu

.github/workflows/ci-and-deploy-with-jib.yml

@@ -25,6 +25,10 @@ jobs:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+        working-directory: ./timepiece
+
       # Jib로 빌드 및 푸시
       - name: Build and Push with Jib
         run: ./gradlew jib