Add a silent mode where it won't even print an error message on error?

[jonsimantov]

What you want to add

Add an option (either to fail_on_error or a new option) so that it won't even print an error to the GitHub log if a label doesn't exist.

Why this is needed

In my workflows, I want to use this action to specify a large list of labels to remove, but have it completely ignore any that are not present without spamming the error log.