Add the gitea05.opendev.org server into the haproxy pools now that
it's been seeded with current data. Switch the create repos task
disable list from 05 to 07 and 08, and remove 07 and 08 from the
Ansible inventory and comment them out in the haproxy pools in
preparation for replacement.
To the casual observer it may appear gitea06 is being skipped, but
it was replaced first out of sequence due to filesystem corruption
during the PTG. The increased performance of the 75% of the nodes
which have already been replaced means we can get by doing the final
25% at the same time (so two servers at once).
Change-Id: Ia49157c16582b7ed0dbef3eb9d07bf7f1d4450b9