Statamic 6 support

Author: jacksleight

composer.json

@@ -22,7 +22,7 @@
         }
     },
     "require": {
-        "statamic/cms": "^5.0"
+        "statamic/cms": "^5.0|^6.0"
     },
     "require-dev": {
         "nunomaduro/collision": "^8.1",