Merge pull request #65 from so-grimm/neos9-compatibility

Add Neos 9 compatibility

Author: Sebobo

composer.json

@@ -20,8 +20,8 @@
     }
   ],
   "require": {
-    "neos/neos": "^7.3 || ^8.0",
-    "neos/neos-ui": "^7.3 || ^8.0"
+    "neos/neos": "^7.3 || ^8.0 || ^9.0",
+    "neos/neos-ui": "^7.3 || ^8.0 || ^9.0"
   },
   "extra": {
     "neos": {