Update composer.json

Author: stefanzweifel

composer.json

@@ -31,7 +31,7 @@
         "phpstan/extension-installer": "^1.1",
         "phpstan/phpstan-deprecation-rules": "^1.0",
         "phpstan/phpstan-phpunit": "^1.0",
-        "phpunit/phpunit": "^9.4 | ^10.0"
+        "phpunit/phpunit": "^9.4 | ^10.0 | ^11.0"
     },
     "autoload": {
         "psr-4": {