Update .gitlab-ci.yml

1 job for master in 6 minutes and 50 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
failed #2020
Docker
Linux client build

00:06:50

 
Name Stage Failure
failed
Linux client build Build
  Running setup.py bdist_wheel for django-bulma: started
Running setup.py bdist_wheel for django-bulma: finished with status 'done'
Stored in directory: /root/.cache/pip/wheels/d2/06/d4/4a053db1cd540c48bdcd9a1e6ff31021e75e5e983ee9c47f11
Successfully built django-bulma
Installing collected packages: django-bulma
Successfully installed django-bulma-0.5.6
$ pip3 run ./manage.py bulma builds
ERROR: unknown command "run"
ERROR: Job failed: exit code 1