remove: permission 설정 제거

.github/workflows/pull_request_gradle_build.yml

@@ -7,9 +7,7 @@ on:
 jobs:
   build-test:
     runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      pull-requests: write
+
     steps:
       - name: Git Checkout
         uses: actions/[email protected]