Verified in 6.10.5 snap 2:
1) The postgresql related warning disappeared (the socket related warnings persist, tracked by BZ#2067120)
Warning: Stopping foreman.service, but it can still be activated by:
foreman.socket
\ stopping pulpcore-content
Warning: Stopping pulpcore-api.service, but it can still be activated by:
pulpcore-api.socket
Warning: Stopping pulpcore-content.service, but it can still be activated by:
pulpcore-content.socket
| All services stopped
2) 6.9.9 snap 2 → 6.10.5 snap 2 upgrade succeeded
3) 6.10.5 snap 2 → 6.11.0 snap 17 upgrade succeeded
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (Important: Satellite 6.10.5 Async Bug Fix Update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHSA-2022:1708