[Feature]: 集群不可用时obdiag 信息收集功能不阻塞

[Teingi]

Describe your use case

集群不可用时obdiag 信息收集功能会因为连接不上集群而报错

Describe the solution you'd like

集群不可用时obdiag 信息收集功能不阻塞

Describe alternatives you've considered

No response

Additional context

No response