SCRUM#463: Add more testing stages on CI

2 jobs for issue/463 in 9 minutes and 4 seconds (queued for 6 seconds)
Status Name Job ID Coverage
  Build
passed build #27703
debian-packaging

00:01:34

 
  Test
failed test #27704
ubuntu regular

00:07:29

 
Name Stage Failure
failed
test Test
dpkg: error processing package lightdm (--configure):
dependency problems - leaving unconfigured
Processing triggers for libc-bin (2.23-0ubuntu10) ...
Processing triggers for systemd (229-4ubuntu21.2) ...
Errors were encountered while processing:
plymouth
lightdm
E: Sub-process /usr/bin/dpkg returned an error code (1)
ERROR: Job failed: exit code 1