Changelog.md entries have incorrect links to merge requests following move to gitlab-foss

(My apologizes if this issue has already been reported. I tried searching for it but simply got too many results when searching for words like changelog and/or merge requests).

Problem to solve

The automatic https://gitlab.com/gitlab-org/gitlab-foss/blob/master/CHANGELOG.md entries generated by the bots for each release based on the https://gitlab.com/gitlab-org/gitlab/tree/master/changelogs entries appears to create links to incorrect merge requests following the move of gitlab-ce to "gitlab-foss".

See for instance:

12.4.2

Fixed (10 changes)

(which here automatically links to !18908 (merged) but for the actual CHANGELOG.md file links to gitlab-foss!18908 (merged))

Proposal

Change the writing of the CHANGELOG.md entries so that they link (in the gitlab-foss CHANGELOG.md) not to the merge requests in the project gitlab-foss but instead to the correct corresponding gitlab merge requests.