[TASK] Update phpstan/phpstan-phpunit to v2

| datasource | package                 | from  | to    |
| ---------- | ----------------------- | ----- | ----- |
| packagist  | phpstan/phpstan-phpunit | 1.4.1 | 2.0.1 |

composer.json

@@ -24,7 +24,7 @@
 		"eliashaeussler/rector-config": "^3.0",
 		"ergebnis/composer-normalize": "^2.30",
 		"phpstan/extension-installer": "^1.2",
-		"phpstan/phpstan-phpunit": "^1.1",
+		"phpstan/phpstan-phpunit": "^2.0",
 		"phpunit/phpunit": "^10.2 || ^11.0"
 	},
 	"autoload": {