The user that setup GitHub Mirroring always shows as the person that triggers the GitLab pipeline
<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Work on this issue](https://contributors.gitlab.com/manage-issue?action=work&projectId=278964&issueIid=321279) - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=321279) </details> <!--IssueSummary end--> Hello! We keep our source control in GitHub and use GitLab for CI/CD. When we setup repository mirroring, the GitLab user that initially set the mirroring up then _always_ shows as the person that triggers the GitLab pipeline, for all pipeline runs going forward. This is very annoying for us, and we would prefer to have GitLab show the name/avatar of the person who did the commits on the GitHub side as the user that triggered the pipeline. Thanks for your consideration!
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