https://gitlab.com/CentOS/infra/tracker/-/work_items/1726

https://git.centos.org is actually both the git forge instance (pagure) but also the lookaside cache server (under https://git.centos.org/sources)
While git forge part will be migrated (see #1654 ) to Gitlab, we still need to host the lookaside cache counterpart.
From ansible role PoV , it's all in the same pagure ansible role so we should now :

• decouple it and host lookaside role to be independent
• test it on el9 (and eventually directly el10)

Once will tested/validated that will permit us to schedule git.centos.org sunset and migration to new host for lookaside cache entirely (also keeping SANs for git.centos.org and alias for /sources though, to ensure smooth migration)