chore: allow phpunit version 11

Author: brotkrueml

composer.json

@@ -22,7 +22,7 @@
 		"ergebnis/composer-normalize": "~2.44.0",
 		"infection/infection": "^0.29.7",
 		"phpstan/phpstan": "1.12.7",
-		"phpunit/phpunit": "^10.5",
+		"phpunit/phpunit": "^10.5 || 11.4",
 		"psr/log": "^3.0",
 		"rector/rector": "1.2.8"
 	},