Fix GitLab URLs to point to the correct project page
GitLab 16.0 removes support for URLs that don't contain /-/ after the
repository name, so the report bug feature and various links we had in
the source (including the git-fixes script) would lead to a 404 error.
See GitLab docs for deprecation/removal notice:
https://docs.gitlab.com/ee/update/deprecations.html?removal_milestone=16.0#legacy-urls-replaced-or-removed
(Cherry-picked from 20ec8ed303)
Fixes: https://gitlab.com/kicad/code/kicad/-/issues/14759
17c27d1176