fix: empty ref on checkout

Author: ddevsr

.github/workflows/test-file-permissions.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
         with:
-          ref: ${{ github.ref_name }}
+          ref: ''
           fetch-depth: 0
 
       - name: Setup PHP