rpk shadow update

Updates a shadow link.

This command opens your default editor with the current shadow link configuration, and allows you to update the fields you want to change, save the file, and close the editor. The command applies only the changed fields to the shadow link.

You cannot change the shadow link name. If you need to rename a shadow link, delete it and create a new one with the desired name.

The editor respects your EDITOR environment variable. If EDITOR is not set, the command uses 'vi' on Unix-like systems.