Consider making `review-deploy` start once `review-build-cng` has finished

Currently, the review-deploy job wait for the previous stage (post-test) to finish before it starts. The coverage job in the post-test stage takes 9.5 minutes on average: https://app.periscopedata.com/app/gitlab/496118/Engineering-Productivity-Sandbox?widget=7248745&udv=785399

That's 9 minutes we could save on the overall pipelines!