remove ref

Author: fadrian06

.github/workflows/lint.yml

@@ -11,8 +11,6 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v6
-        with:
-          ref: ${{ github.head_ref }}
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2