CI: Refactoring pipelines with include conditional (!6317) · Merge requests · Tezos / tezos · GitLab

Goals:

make it harder to add jobs to the wrong pipeline(s) by mistake
make the result closer to what we would get from the OCaml version (romain-ci-in-ocaml branch)

The idea is to:

have one YAML file per job or per family of jobs
have one YAML file per pipeline, which only contains includes of the job files
have .gitlab-ci.yml conditionally include exactly one pipeline file

See #3689 (closed) for more informations