Update PHPStan packages to v2

Author: renovate[bot]

composer.json

@@ -47,11 +47,11 @@
         "nyholm/psr7": "^1.8",
         "overtrue/phplint": "^9.0",
         "php-http/mock-client": "^1.6",
-        "phpstan/phpstan": "^1.0",
-        "phpstan/phpstan-deprecation-rules": "^1.0",
-        "phpstan/phpstan-phpunit": "^1.0",
-        "phpstan/phpstan-strict-rules": "^1.0",
-        "phpstan/phpstan-symfony": "^1.0",
+        "phpstan/phpstan": "^2.0",
+        "phpstan/phpstan-deprecation-rules": "^2.0",
+        "phpstan/phpstan-phpunit": "^2.0",
+        "phpstan/phpstan-strict-rules": "^2.0",
+        "phpstan/phpstan-symfony": "^2.0",
         "phpunit/phpunit": "^10.0",
         "rector/rector": "^1.0",
         "symfony/http-client": "^6.0"