typo in ci

2 jobs for master in 17 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
failed #11033
build

00:00:17

failed #11032
build

00:00:20

 
Name Stage Failure
failed
build Test
Running on runner-655e7f9b-project-204-concurrent-0 via lip-build...
DEPRECATION: this GitLab server doesn't support refspecs, gitlab-runner 12.0 will no longer work with this version of GitLab
Fetching changes...
Checking out f05241ad as master...

Skipping Git submodules setup
$ docker login -u gitlab-ci-token -p $CI_JOB_TOKEN registry.git.mpib-berlin.mpg.de
/bin/bash: line 79: docker: command not found
ERROR: Job failed: exit code 1