chore: lint PHP 8.4

Author: tfrommen

Diff for: .github/workflows/quality-assurance-php.yml

@@ -44,7 +44,7 @@ jobs:
         uses: inpsyde/reusable-workflows/.github/workflows/lint-php.yml@main
         strategy:
             matrix:
-                php-ver: [ '7.4', '8.0', '8.1', '8.2', '8.3' ]
+                php-ver: [ '7.4', '8.0', '8.1', '8.2', '8.3', '8.4' ]
         with:
             PHP_VERSION: ${{ matrix.php-ver }}
             LINT_ARGS: '-e php --colors --show-deprecated ./Inpsyde'