Update composer.json

Author: daniellienert

composer.json

@@ -13,7 +13,7 @@
     "license": "MIT",
     "require": {
         "php": "^7.2 || ^8.0",
-        "neos/neos": "^5.0 || ^7.0 || ^8.0"
+        "neos/neos": "^5.0 || ^7.0 || ^8.0 || ^9.0"
     },
     "suggest": {
         "league/flysystem-webdav": "~1.0.0",