ci: Build images directly from the GitLab CI Git URL
Blubber can now (as of v1.0.0) build directly from remote sources. Use
the GitLab CI project URL and commit as the build context for all jobs
and skip the git clone on the CI runner.
Related MRs:
- !115 (merged)
- !113 (merged) (This MR)
- main
Edited by Dduvall