branches are hard. fixing the unnecessary changes on master

.gitlab-ci.yml

 default:
   image: python:3-slim
-
-job 1:
-  stage: test
-  tags:
-   - public-docker
-  image: docker:latest
+test:
   script:
-   - echo "Logging in"
-   - docker --version
-   - docker login gitlab.version.fz-juelich.de:5555 -u rybicki1 -p ldalda
-   - docker image ls
+   - pip install -r requirements.txt
+   - pytest 
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