Add tests for fedora with no bubblewrap available
Description
This MR adds a fedora runner with bubblewrap and ostree missing, in order to ensure that tests are correctly marked with skip parameters.
Changes proposed in this merge request:
- Refactor
.gitlab-ci.yml
to reduce duplication - Always generate coverage
- Add a fedora runner without bubblewrap and ostree
- Mark tests correctly about their use of bwrap.