community/podman: tries to connect to systemd for container healthchecks

when running a container from an image that support healthchecks, such as gitlab/gitlab-ce:15.3.1-ce.0, starting the container shows the following:

ERRO[0011] unable to get systemd connection to add healthchecks: dial unix /run/systemd/private: connect: no such file or directory 
ERRO[0011] unable to get systemd connection to start healthchecks: dial unix /run/systemd/private: connect: no such file or directory

despite that, the container starts, but the "error" log level is misleading

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