Promtail: Update debian image and use a newer libsystemd  (#2957)
Promtail: Update debian image and use a newer libsystemd  (#2957)

* use a newer libsystemd which understands compression needed in some of the newer OS distros

* add comments
grafana/loki,grafana/loki,grafana/loki,grafana/loki,grafana/loki,grafana/loki