message: Fix gitlab coverage report yaml
diff: @@ -481,8 +481,9 @@ Gitlab can [show coverage information] in the diff of a merge request. For that,
  job: ...
  artifacts:
  reports:
  - cobertura:
  - - cobertura.xml
  + coverage_report:
  + coverage_format: cobertura
  + path: cobertura.xml
  ```
  and generate a `cobertura.xml` as described under [Pycobertura](#pycobertura).
  