[yggdrasil-connect] require php 8.1 & bump version to 6.0.4

Author: tnqzh123

plugins/yggdrasil-connect/package.json

@@ -1,12 +1,13 @@
 {
   "name": "yggdrasil-connect",
-  "version": "6.0.3",
+  "version": "6.0.4",
   "title": "Yggdrasil Connect",
   "description": "LittleSkin\\YggdrasilConnect::config.plugin-description",
   "author": "LittleSkin",
   "namespace": "LittleSkin\\YggdrasilConnect",
   "require": {
-    "blessing-skin-server": "^6"
+    "blessing-skin-server": "^6",
+    "php": "^8.1"
   },
   "enchants": {
     "config": "Controllers\\ConfigController",