Update PHPStan packages to v2

| datasource | package                           | from    | to    |
| ---------- | --------------------------------- | ------- | ----- |
| packagist  | phpstan/phpstan                   | 1.12.10 | 2.0.1 |
| packagist  | phpstan/phpstan-deprecation-rules | 1.2.1   | 2.0.0 |
| packagist  | phpstan/phpstan-phpunit           | 1.4.1   | 2.0.1 |
| packagist  | phpstan/phpstan-strict-rules      | 1.6.1   | 2.0.0 |

composer.json

@@ -27,10 +27,10 @@
         "lcobucci/coding-standard": "^11.1",
         "mikey179/vfsstream": "^1.6.12",
         "phpstan/extension-installer": "^1.4",
-        "phpstan/phpstan": "^1.12",
-        "phpstan/phpstan-deprecation-rules": "^1.2",
-        "phpstan/phpstan-phpunit": "^1.4",
-        "phpstan/phpstan-strict-rules": "^1.6",
+        "phpstan/phpstan": "^2.0",
+        "phpstan/phpstan-deprecation-rules": "^2.0",
+        "phpstan/phpstan-phpunit": "^2.0",
+        "phpstan/phpstan-strict-rules": "^2.0",
         "phpunit/phpunit": "^11.4",
         "squizlabs/php_codesniffer": "^3.10",
         "symfony/yaml": "^7.1"