Commit 4fa307f149 fixed a number of issues in the sdnotify proxies.
Whenever a container runs with a custom sdnotify policy, the proxies
need to keep running which in turn required Podman to run and wait for
the service container to stop. Improve on that behavior and set the
service container as the main PID (instead of Podman) when no container
needs sdnotify.
Fixes: #17345
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
1541ce56cf