Update and rename gitlab CI conf, as suggested on...

Update and rename gitlab CI conf, as suggested on 'https://salsa.debian.org/salsa-ci-team/pipeline/blob/master/README.md'
6 jobs for master in 8 minutes and 17 seconds (queued for 3 seconds)
latest
Status Job ID Name Coverage
  Build
passed #234495
build

00:03:27

 
  Test
passed #234498
autopkgtest

00:03:25

passed #234499
blhc

00:01:33

passed #234497
lintian

00:01:56

passed #234500
piuparts

00:04:48

passed #234496
reprotest

00:03:25