Update dependency phpstan/phpstan to v2

| datasource | package         | from   | to    |
| ---------- | --------------- | ------ | ----- |
| packagist  | phpstan/phpstan | 1.12.9 | 2.0.1 |

Author: renovate[bot]

composer.json

@@ -16,7 +16,7 @@
         "friendsofphp/php-cs-fixer": "^3.64.0"
     },
     "require-dev": {
-        "phpstan/phpstan": "^1.12.9",
+        "phpstan/phpstan": "^2.0.1",
         "phpstan/phpstan-phpunit": "^1.4.0",
         "phpunit/phpunit": "^11.4.3"
     },