chore: sync plugin from AstrBotDevs/AstrBot#6593 (#365)

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-splatoon3": {
+    "display_name": "Splatoon3 斯普拉遁3查询",
+    "desc": "查询Splatoon3游戏数据，包括地图轮换、鲑鱼跑、挑战、祭典、装备商店等信息",
+    "author": "Pfw",
+    "repo": "https://github.com/pengfen-wei/astrbot_plugin_splatoon3"
+  },
   "astrbot-plugin-vocu-tts": {
     "display_name": "VocuTTS",
     "desc": "通过 Vocu API 将机器人发送的文本消息自动转为语音，支持 TRPG 括号内容过滤与情绪映射。",