chore(deps): update phpstan packages to v2

Author: renovate[bot]

composer.json

@@ -22,8 +22,8 @@
         "brainbits/phpcs-standard": "^7.0",
         "brainbits/phpstan-rules": "^3.0",
         "jangregor/phpstan-prophecy": "^1.0",
-        "phpstan/phpstan": "^1.0",
-        "phpstan/phpstan-phpunit": "^1.3",
+        "phpstan/phpstan": "^2.0",
+        "phpstan/phpstan-phpunit": "^2.0",
         "phpunit/phpunit": "^10.2"
     },
     "config": {