Feature Request: PR/MR Context Support for Gitlab

[julia-leyton]

Is your feature request related to a problem? Please describe

PR/MR Context currently works only for GitHub. It would be a great feature for customers using Gitlab as well.

Describe the behaviour you'd like

Describe alternatives you've considered

Additional context

Signal(s) internal
https://github.com/gitpod-io/customers/issues/52

[gtsiolis]

Thanks, @julia-leyton! See also #5342 and relevant comment in #5342 (comment). Cc @loujaybee @akosyakov

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.