Support GitLab CI on a GitHub repository

[finkandreas]

Hello,
I did not find exactly the answer in your docs, and it mentions to open an issue for a different CI environment.
I have the following setup:

• My repository is hosted on github
• For reasons, I have a github action, that mirrors the repository to gitlab, because private runners are connected to gitlab
• Now the codspeed runs in an gitlab environment
• I want the report go to github, not gitlab

So the PR exists on github, while the actual CI is running in a mirror repository that has a gitlab environment.
Now I know that you support both github and gitlab environments, but there are probably some assumptions that are just not true in the setup that I have. For instance there is no MR on the gitlab side, only the branch.
Any chance to trick codspeed to believe that it is a github environment, and which variables would I need to set, such that the report would be sent to the github repository?

Thanks for figuring this out.