migrate gitlab-02 to new gnt-dal cluster
we're going to host more and more gitlab stuff in object storage (e.g. #41425 (closed)) and already have runners there. it makes sense to move gitlab-02 to the new gnt-dal cluster, which has faster disks and more powerful CPUs.
this should help us deal with the current overload in the gnt-fsn cluster as well (incident #41429 (closed)).