Update .gitlab-ci.yml to use a dynamic docker registry URL.

3 jobs for master in 1 minute and 13 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Test
passed #810
allowed to fail
coverage_tests

00:00:37

100.0%
passed #809
unit_tests

00:00:24

 
  Build
passed #811
build

00:00:36