Git migrated to Forgejo

As part of the server migration the git hosting at git.srcbox.net now also changed places but not only that. In addition to running on a new machine the software for this service also changed from Gitea to Forgejo . The decision whether to stick with Gitea (and upgrade to a newer version) or to switch to Forgejo took several months as well as some migration experiments in a local VM but in the end…