Add gitlab-ci-token user login

2 jobs for master in 1 second (queued for 3 seconds)
latest
Status Job ID Name Coverage
  Build
failed #31272
shell linux
docker:knot-dns:debian

00:00:01

failed #31273
shell linux
docker:knot-dns:ubuntu

00:00:01

 
Name Stage Failure
failed
docker:knot-dns:debian Build There is an unknown failure, please try again
$ docker push "registry.labs.nic.cz/knot/knot-dns/debian:latest"
The push refers to a repository [registry.labs.nic.cz/knot/knot-dns/debian]
6bfb54af2a1f: Preparing
a70ec15fa686: Preparing
e5bb69c58b5d: Preparing
1360d1bf5537: Preparing
38eff4e78786: Preparing
denied: requested access to the resource is denied
ERROR: Job failed: exit status 1
failed
docker:knot-dns:ubuntu Build There is an unknown failure, please try again
6a2eb894a84a: Waiting
37b67a052cf4: Waiting
26b126eb8632: Waiting
220d34b5f6c9: Waiting
8a5132998025: Waiting
aca233ed29c3: Waiting
e5d2f035d7a4: Waiting
denied: requested access to the resource is denied
ERROR: Job failed: exit status 1