Update fix-php-code-style-issues.yml

Author: marcogermani87

.github/workflows/fix-php-code-style-issues.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
         with:
-          ref: ${{ github.head_ref }} # This ensures you checkout the branch of the pull request
+          ref: ${{ github.head_ref || github.ref_name }}
 
       - name: Fix PHP code style issues
         uses: aglipanci/laravel-pint-action@2.5