Issue description

edit custom plugin，export schema.json copy to dashbord conf folder, restart dashboard but still can't find it in dashboard @

Expected behavior

can find in dashboard

How to Reproduce

1、edit new custom plugin name wb-param
2、edit apisix conf add the plugin
3、call curl 127.0.0.1:9090/v1/schema > schema.json
4、在 dashboard docker启动时映射 schema.json 文件
5、重启 dashboard docker 容器

Screenshots

http://image.nianlun.tech/20231107-104604.jpeg
i delete orher plugins ，only left ai、wb-param(my plugin)、limit-count
http://image.nianlun.tech/20231107-103918.jpeg

Environment

• apisix version (cmd: apisix version):3.6.0
• OS (cmd: uname -a): macos arm64
• OpenResty / Nginx version (cmd: nginx -V or openresty -V):openresty/1.21.4.2
• etcd version, if have (cmd: run etcd --version):3.5.9
• apisix-dashboard version, if have: 3.0.1
• Browser version, if have:

Additional context

No response