Allow cluster rotate auth to accept cluster name as argument

[danielhelfand]

Summary

Similar to #8823, the RotateAuth endpoint for the cluster server should accept the cluster name as a way of knowing token to rotate. At this point, all other endpoints for the cluster server accept both the server and name as ways of identifying a cluster. RotateAuth should be the same.

Motivation

For some users, it is simpler to identify clusters by a name rather than by the server url. It should also be a consistent experience for users interacting with the cluster server.

Proposal

This should be implemented in a way similar to #8823. Also, changing the CLI/UI to allow names should be considered as part of this change to allow users to easily consume this change.

The endpoint func in question is here.

For the CLI, the rotate auth command would need to be changed to also accept the name of the cluster instead of just the server.