My current gitlab username is not completely to my liking, and I would like to change it so it doesn’t have a hypen in it. Currently it’s johnny-bravo whereas I want it to be just johnnybravo. The account currently holding the johnnybravo namespace hasn’t been active since the account was created. I would really like to have this username if the user is a namespace squatter.
Hi and welcome to the forum! 
I believe this should answer your question: