Update plugins.json

Author: Soulter

plugins.json

@@ -511,7 +511,8 @@
       "codex",
       "geminicil",
       "opencode"
-    ]
+    ],
+    "pinned": true
   },
   "astrbot_plugin_mc_duration": {
     "display_name": "MC魔人时长统计",
@@ -1229,7 +1230,6 @@
       "世界书"
     ],
     "social_link": "https://github.com/Zhalslar",
-    "pinned": true
   },
   "astrbot_plugin_service_watcher": {
     "display_name": "互联网服务监控",