Update dependency

Author: lcharette

.github/workflows/PHPStan.yml

@@ -19,7 +19,7 @@ jobs:
     name: PHPStan - ${{ matrix.php_versions }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Setup PHP, with composer and extensions
       uses: shivammathur/setup-php@v2