Draft: Validate ci_job_variables#project_id constraint
Ref: #463243 (closed)
What does this MR do and why?
This MR does 2 things:
- Mark our migration as finalized
- Validate our new constraint, marked as invalid in our current schema.
This will make sure we always have a project_id
when creating a Ci::JobVariable
as this is a requirement for Cells1.0.