Merge branch 'system_tests' into 'master'

System tests

See merge request !2
3 jobs for master in 9 minutes and 49 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build And Test
passed #245262
ligo-channel-completion:buster

00:01:09

passed #245264
ligo-channel-completion:jessie

00:09:49

passed #245263
ligo-channel-completion:stretch

00:01:01