Add GitLab's CI configuration file

6 jobs for kali/master in 12 minutes and 25 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #255466559
build

00:02:39

 
  Test
passed #255466564
autopkgtest

00:02:22

passed #255466566
blhc

00:00:38

passed #255466562
lintian

00:00:52

passed #255466572
piuparts

00:04:05

passed #255466561
reprotest

00:05:39