This patchset adds a CI script using a forgejo instance I have set up.
It's a little ad-hoc but already saved me time testing gnumach. I hope to get it into the repo so I can auto-build commits on master branch when I push and share the logs with the community. Caveat is that the runner is on an old version of Debian and so for now, I am stuck with gcc-10, so I have ported a couple of fixes to make it work with that. I could upgrade the runner OS version but that will take more time. Damien
