Ceph Squid not availbale in Proxmox Offline Mirror

root@pom:~# proxmox-offline-mirror setup
Loaded existing config.

Existing config entries:
[redacted]

Select Action:
   0) Add new mirror entry
   1) Add new medium entry
   2) Add new subscription key
   3) Quit
Choice ([0]): 0
Guided Setup ([yes]): yes
Select distro to mirror
   0) Proxmox VE
   1) Proxmox Backup Server
   2) Proxmox Mail Gateway
   3) Proxmox Ceph
   4) Debian
Choice: 3...