Use gcrkrause tag for runners

1 job for master in 1 minute and 34 seconds (queued for 3 seconds)
latest
Status Job ID Name Coverage
  Test
failed #2479
gcrkrause
build

00:01:34

 
Name Stage Failure
failed
build Test
From https://git.netzspielplatz.de/soundship/loopp-docker-build-env
* [new ref] refs/pipelines/846 -> refs/pipelines/846
Checking out ac5389df as master...

Skipping Git submodules setup
$ docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
WARNING! Using --password via the CLI is insecure. Use --password-stdin.
error during connect: Post http://docker:2375/v1.40/auth: dial tcp: lookup docker on 8.8.8.8:53: no such host
ERROR: Job failed: exit code 1