Run CS fixer under PHP 8 to avoid parsing errors

Author: Jean85

.github/workflows/static-analysis.yaml

@@ -30,7 +30,7 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: 7.4
+          php-version: 8.1
       - name: Install dependencies
         uses: "ramsey/composer-install@v3"
       - run: ${{ matrix.script }}