Refactor tag rancher command

[tashima42]

• Removes unused configs (registry related commands were removed)
• Moves dry run and skip status check configs to flags
• Moves logs to the cli code
• Removes support for debug releases (they were renamed to hotfix and now the bullseye team handles it)

[briandowns]

Why remove the error check on the CreateRelease call?

[tashima42]

Because createdRelease.GetHTMLURL() returns an empty string if it isn't available, returning it and err is the same as checking err and returning an empty string

createdRelease, err := repository.CreateRelease(ctx, ghClient, opts)
if err != nil {
    return "", err
}
return createdRelease.GetHTMLURL(), nil

Is the same as

createdRelease, err := repository.CreateRelease(ctx, ghClient, opts)
return createdRelease.GetHTMLURL(), err