[TASK] Update PHPStan packages to v2

| datasource | package                    | from   | to    |
| ---------- | -------------------------- | ------ | ----- |
| packagist  | jangregor/phpstan-prophecy | 1.0.2  | 2.0.0 |
| packagist  | phpstan/phpstan-phpunit    | 1.4.2  | 2.0.4 |
| packagist  | saschaegerer/phpstan-typo3 | 1.10.2 | 2.0.0 |

Tests/CGL/composer.json

@@ -9,10 +9,10 @@
 		"eliashaeussler/rector-config": "^3.0",
 		"ergebnis/composer-normalize": "^2.15",
 		"helmich/typo3-typoscript-lint": "^3.0",
-		"jangregor/phpstan-prophecy": "^1.0",
+		"jangregor/phpstan-prophecy": "^2.0",
 		"phpstan/extension-installer": "^1.3",
-		"phpstan/phpstan-phpunit": "^1.0",
-		"saschaegerer/phpstan-typo3": "^1.0",
+		"phpstan/phpstan-phpunit": "^2.0",
+		"saschaegerer/phpstan-typo3": "^2.0",
 		"ssch/typo3-rector": "^2.0",
 		"typo3/coding-standards": "^0.6.0 || ^0.7.0 || ^0.8.0"
 	},