make new mirrors in gnt-dal cluster (web-dal-07 and web-dal-08)
in #40897, we decided to do an emergency migration of the Cymru web mirrors to OVH. but in #40971 (closed) we finally setup a cluster in an alternate location and in #40972 (closed) we migrated all VMs off of the Cymru server successfully.
Now is the time to decide what we do about the web-bhs-* mirrors. The plan was to create new VMs in the new cluster and shutdown those at OVH, and I think it should be followed through. I probably won't have time to do this today, but it would be great if we could get to this next week.