Update dependency phpstan/phpstan to v2

Author: renovate[bot]

composer.json

@@ -36,7 +36,7 @@
     },
     "require-dev": {
         "mikehaertl/php-shellcommand": "^1.1.0",
-        "phpstan/phpstan": "^1.8.8",
+        "phpstan/phpstan": "^1.8.8 || ^2.0.0",
         "phpunit/phpunit": "^8.5 || ^9.2",
         "scrutinizer/ocular": "^1.6",
         "unleashedtech/php-coding-standard": "^2.7 || ^3.0",