[TASK] Update PHPStan packages to v2

| datasource | package                 | from   | to    |
| ---------- | ----------------------- | ------ | ----- |
| packagist  | phpstan/phpstan-phpunit | 1.4.0  | 2.0.0 |
| packagist  | phpstan/phpstan-symfony | 1.4.12 | 2.0.0 |

Tests/CGL/composer.json

@@ -7,8 +7,8 @@
 		"ergebnis/composer-normalize": "^2.30",
 		"helmich/typo3-typoscript-lint": "^3.1",
 		"phpstan/extension-installer": "^1.3",
-		"phpstan/phpstan-phpunit": "^1.3",
-		"phpstan/phpstan-symfony": "^1.3",
+		"phpstan/phpstan-phpunit": "^2.0",
+		"phpstan/phpstan-symfony": "^2.0",
 		"saschaegerer/phpstan-typo3": "^1.8",
 		"ssch/typo3-rector": "^2.0",
 		"typo3/coding-standards": "^0.8.0"