Update PHPStan dependencies

Author: ondrejmirtes

composer.json

@@ -57,10 +57,10 @@
 		"cweagans/composer-patches": "^1.7.3",
 		"ondrejmirtes/simple-downgrader": "^2.0",
 		"php-parallel-lint/php-parallel-lint": "^1.2.0",
-		"phpstan/phpstan-deprecation-rules": "^1.2",
-		"phpstan/phpstan-nette": "^1.0",
-		"phpstan/phpstan-phpunit": "^1.0",
-		"phpstan/phpstan-strict-rules": "^1.6",
+		"phpstan/phpstan-deprecation-rules": "^2.0",
+		"phpstan/phpstan-nette": "^2.0",
+		"phpstan/phpstan-phpunit": "^2.0",
+		"phpstan/phpstan-strict-rules": "^2.0",
 		"phpunit/phpunit": "^9.6",
 		"shipmonk/composer-dependency-analyser": "^1.5",
 		"shipmonk/name-collision-detector": "^2.0"