Upgrade to PHPStan 2 (#565)

Author: greg0ire

composer.json

@@ -30,11 +30,11 @@
         "composer/semver": "^3.0",
         "phpunit/phpunit": "^8.5|^9.5",
         "doctrine/coding-standard": "^12",
-        "phpstan/phpstan": "^1.4",
-        "phpstan/phpstan-deprecation-rules": "^1",
-        "phpstan/phpstan-phpunit": "^1",
-        "phpstan/phpstan-strict-rules": "^1.1",
-        "phpstan/phpstan-symfony": "^1.3",
+        "phpstan/phpstan": "^1.4 || ^2",
+        "phpstan/phpstan-deprecation-rules": "^1 || ^2",
+        "phpstan/phpstan-phpunit": "^1 || ^2",
+        "phpstan/phpstan-strict-rules": "^1.1 || ^2",
+        "phpstan/phpstan-symfony": "^1.3 || ^2",
         "doctrine/orm": "^2.6 || ^3",
         "doctrine/persistence": "^2.0 || ^3 ",
         "symfony/phpunit-bridge": "^6.3 || ^7",