Bump phpstan/phpstan to ^2.0 (#94)

* [Composer] Bump phpstan/phpstan to ^2.0
* [PHPStan] Regenerated PHPStan baseline

Author: adamwojs

composer.json

@@ -60,9 +60,9 @@
         "phpunit/phpunit": "^8.2",
         "matthiasnoback/symfony-dependency-injection-test": "4.3",
         "symfony/phpunit-bridge": "^5.3",
-        "phpstan/phpstan": "^1.10",
-        "phpstan/phpstan-phpunit": "^1.3",
-        "phpstan/phpstan-symfony": "^1.3"
+        "phpstan/phpstan": "^2.0",
+        "phpstan/phpstan-phpunit": "^2.0",
+        "phpstan/phpstan-symfony": "^2.0"
     },
     "scripts": {
         "fix-cs": "php-cs-fixer fix --config=.php-cs-fixer.php -v --show-progress=dots",