Feature request: setup repository mirroring from GitLab to GitHub

[gdm]

Hello,

I'd like to suggest to add a feature for setup mirroring in GitLab to GitHub.

For security reason (I hope noone wants to share his password from GitHub) it has to be done via ssh key which isn't unfortunately supported by GItLab API as of July 2023.

I can try to implement this feature using similar approach as for missing GitLab download attachment API.

BR,
Dmytro