Add support for Symfony 8

Author: Kocal

composer.json

@@ -11,12 +11,12 @@
     ],
     "require": {
         "psr/container": "^1.0|^2.0",
-        "symfony/options-resolver": "^4.2 || ^5.0 || ^6.0 || ^7.0"
+        "symfony/options-resolver": "^4.2 || ^5.0 || ^6.0 || ^7.0 || ^8.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^8",
         "phpstan/phpstan": "^0.12.52",
-        "friendsofphp/php-cs-fixer": "^2.16"
+        "php-cs-fixer/shim": "^3.89"
     },
     "autoload": {
         "psr-4": {