[releng] Issue #6994: Add dusty to releng team

[Dusty Mabe]

dustymabe reported a new issue against the project: `releng` that you are following:
``
Following on from: https://pagure.io/releng/issue/6924#comment-451557

Since I often am a time drain on many people within this group because of constant issues
I'd like to be able to help people when they have problems and also be able to do
things (like having more than just Adam Miller be able to release Fedora Atomic Host).

I have gone over https://docs.pagure.org/releng/contributing.html and
https://docs.pagure.org/releng/sop_adding_new_release_engineer.html as requested in the
other ticket. 
``

To reply, visit the link below or just reply to this email
https://pagure.io/releng/issue/6994