Allow installation with Neos 8.3

Author: Sebobo

composer.json

@@ -4,7 +4,7 @@
     "type": "neos-package",
     "license": "MIT",
     "require": {
-        "neos/fusion": "^4.2 || ^5.0 || ^7.0"
+        "neos/fusion": "^7.3 || ^8.3"
     },
     "autoload": {
         "psr-4": {