当dubbo.provider.token =true 时，接口文档功能无法用，需要调整为false才能看到具体接口

[chencs001]

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Environment

• Dubbo Admin version:0.6.0，dubbo 3.1.8-3.2.7
• Registry center detail (type and version): nacos 2.1
• Operating System version: linux
• Java version: 1.8u202

Steps to reproduce this issue

1. org.apache.dubbo.apidocs.core.providers.IDubboDocProvider:v1:apiDocsGroup 服务，带有token发布到nacos；
2. dubbo-admin接口文档->加载接口列表 按钮，点击能访问到具体得服务方，但是服务方会返回无效得token错误；
3. 配置关闭token支持，则能够看到接口文档。