From: Patrick Talbert on
gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1063#note_5721...
Hmm at least at the moment you are not listed as a member of the project
so that is why you cannot use the Approve button. But in this case I
don't know how you were added as a Reviewer!
You can simply write a comment with your Ack or Nack and the bot will
pick it up.