Update version to K5

Author: iskrisis

composer.json

@@ -11,7 +11,7 @@
     ],
     "require": {
         "getkirby/composer-installer": "^1.1",
-	"getkirby/cms": "^4.0.0"
+	"getkirby/cms": "^4.0 || ^5.0",
     },
     "autoload": {
     },