Who is in charge for approve the gitlab.haskell.org registration request?

[Evan Greenup]

I have successfully signed up for a <gitlab.haskell.org> account for code contribution and bug report. But when I try to login with this account, it said that my account need to be approved by administrator of this GitLab instance.

How can I get in touch with this administrator. And what procedures do I need to take to get my account be approved?