Add support for --tls-hostname

[maxlegault]

Since version 2.10.0 of Helm, we can specify which host name to expect in the server's certificate when using the --tls-verify option by adding the --tls-hostname [hostname] flag. In a scenario where this is required, helm diff --tls --tls-verify can't unfortunately not be used. It would be great if support for that flag would be added so that the Helm client is created with the propert TLS option.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.