chore: remove unecessary ci config

.github/workflows/ci.yml

@@ -13,15 +13,9 @@ concurrency:
 jobs:
   build:
     runs-on: ubuntu-latest
-    permissions:
-      # Give the default GITHUB_TOKEN write permission to commit and push the
-      # added or changed files to the repository.
-      contents: write
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
-        with:
-          ref: ${{ github.head_ref }}
       - name: Use node
         uses: actions/setup-node@v4
         with: