chore: sync plugin from AstrBotDevs/AstrBot#6287 (#348)

Co-authored-by: astrbot-plugin-copybara[bot] <261421607+astrbot-plugin-copybara[bot]@users.noreply.github.com>

Author: astrbot-plugin-copybara[bot]

plugins.json

@@ -1,4 +1,10 @@
 {
+  "astrbot-plugin-arknights": {
+    "display_name": "基于森空岛（Skland）公开API的明日方舟玩家数据查询AstrBot插件",
+    "desc": "基于森空岛（Skland）公开API的明日方舟玩家数据查询AstrBot插件",
+    "author": "liuwanwan",
+    "repo": "https://github.com/liuwanwan1/astrbot_plugin_arknights"
+  },
   "astrbot-plugin-xbox": {
     "display_name": "Xbox Game Pass 入库提醒",
     "desc": "获取微软 Xbox Game Pass 最新入库游戏列表，支持后台定时推送新游提醒和手动查询。",