cl-xml and de-setf-graphics have as yet just a group, but no project.
That's to be expected: these projects have no associated git projects at the moment. However, to prevent name collisions, we have created groups for all projects on the common-lisp.net system.
If you would like, you can migrate the Subversion repositories to GitLab. There's no need to, though, because Subversion will remain a supported version control system. If you still want to migrate, but need help, we can discuss the steps here on clo-devel.