title: .gitlab-ci stages execution order
body: <p>I have this .gitlab-ci.yml file:</p>
  
  <pre><code>stepA:
    script:
      - echo "A"
  deploy:
    script:
      - echo "1"
  stepB:
    script:
      - echo "B"
  </code></pre>
  
  <p>How can I set which stage should be run in first ?
  Some jobs can be run in parallel by multiple gitlab runners.
  I just want to be sure step A to B are finished before running deploy stage</p>