Update dependency phpstan/phpstan to v2

Author: text-html-renovate[bot]

composer.json

@@ -26,7 +26,7 @@
         "php": "^8.2",
         "squizlabs/php_codesniffer": "^4.0",
         "slevomat/coding-standard": "^8.0",
-        "phpstan/phpstan": "^1.12",
+        "phpstan/phpstan": "^2.0",
         "phpstan/extension-installer": "^1.1",
         "phpstan/phpstan-strict-rules": "^1.1",
         "phpunit/phpunit": "^11.3||^12.0",