When logged into a registry that supports token-based authentication, tell
the server to end this token's session. This will invalidate the token
everywhere you're using it, not just for the current environment.
When logged into a legacy registry that uses username and password
authentication, this will clear the credentials in your user configuration.
In this case, it will only affect the current environment.
If --scope is provided, this will find the credentials for the registry
connected to that scope, if set.