switch to shivammathur/setup-php@v2

.github/workflows/app-code-check.yml

@@ -40,7 +40,7 @@ jobs:
           path: apps/${{ env.APP_NAME }}
 
       - name: Set up php ${{ matrix.php-versions }}
-        uses: shivammathur/setup-php@v1
+        uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-versions }}
           tools: phpunit