Cleanup in reverse order from startup (PROJQUAY-4629)

[dmc5179]

Stop services in reverse order, then remove quay root and systemd unit files and reload systemd

[HammerMeetNail]

@dmc5179 Looks like the name change from quay-app to quay-postgress breaks install on local installations. Can you update the PR to address this?

fatal: [jonathan@mirror-ci-rhel-local-offline-install.c.quay-devel.internal]: FAILED! => ***"attempts": 20, "changed": true, "cmd": ["podman", "exec", "-it", "quay-postgres", "/bin/bash", "-c", "echo 'CREATE EXTENSION IF NOT EXISTS pg_trgm' | psql -d quay -U postgres"], "delta": "0:00:00.058352", "end": "2022-10-17 17:05:21.292428", "msg": "non-zero return code", "rc": 125, "start": "2022-10-17 17:05:21.234076", "stderr": "Error: no container with name or ID \"quay-postgres\" found: no such container", "stderr_lines": ["Error: no container with name or ID \"quay-postgres\" found: no such container"], "stdout": "", "stdout_lines": []***

Update
Huh, I might be wrong, I'm seeing this error in other builds. Looking closer...

[HammerMeetNail]

Found the issue, it's related to the pause image we're using. I've made the update here. Once this is merged, can you rebase and we'll get this in? #94

[HammerMeetNail]

LGTM