A dbus session bus must be started for testing. The command
`dbus-run-session` creates a session for the following command. As a
result, `pytest` runs with its own session bus for the tests.
Signed-off-by: Sven Sager <s.sager@kunbus.com>
Systemd does not exist in the docker file. So we just set an machine-id,
which the dbus-daemon can use to start a session.
Signed-off-by: Sven Sager <s.sager@kunbus.com>
