Limit access to scheduler dashboards to authenticated users

Hello,

I have successfully proxied dask-gateway through Jupyterhub, (ala daskhub, with traefik ingress being of type `CLusterIP`) and dask scheduler dashboards are available on URLs of the type

```
https://my-domain.com/services/dask-gateway/clusters/xxx.yyy/status
```

Such URLs seem to be publicly accessible: is this intended? the URLs are hard to guess, but shouldn't dask-gateway only allow users authenticated to jupyterhub to connect to the dashboards?

Thanks in advance

Olivier