Prepare the coordinated pipeline for the post-deploy migration pipeline transition
When rolling out the post-deploy migration pipeline #2352 (closed), the coordinated pipeline needs to be adjusted not to execute post-migrations as they will be executed by the post-deploy migration pipeline. Still, it should have a way to execute them just in case something goes wrong with the rollout.
Proposal
Make the gstg and gprd post-migrations jobs, along with QA jobs on staging, to be manual. That way, post-migrations, and quality won't be executed unless the Release Manager triggers the manuals jobs