fix(workflows): fix update_contributors workflow

.github/workflows/update_contributors.yml

@@ -15,8 +15,6 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
-        with:
-          ref: ${{ github.head_ref }}
 
       - name: Install Node.js
         uses: actions/setup-node@v4
@@ -35,5 +33,5 @@ jobs:
           git diff
           git config --global user.email "actions@github.com"
           git config --global user.name "GitHub Actions"
-          git commit -am "Update CONTRIBUTORS.md" || exit 0
+          git commit -am "chore(contributors): Update CONTRIBUTORS.md" || exit 0
           git push