Add GitLab's CI configuration file

6 jobs for kali/master in 11 minutes and 38 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #255467516
build

00:02:53

 
  Test
passed #255467524
autopkgtest

00:01:44

passed #255467528
blhc

00:00:39

passed #255467521
lintian

00:00:50

passed #255467529
piuparts

00:02:39

passed #255467517
reprotest

00:03:29