Change author of cherry-picked commits
Overview
This MR changes the author of cherry-picked commits:
When User A cherry picks a commit authored by User B
Before:
Author: User B
Committer: User A
Now:
Author: User A
Committer: User B
When commit signing with committer email/name enabled:
Author: User A Committer: GitLab
When GitLab Rails implements appending Co-authored-by trailer:
Author: User A
Committer: GitLab
Co-authored-by: User B