Add a service that publishes/deploys the blog post
Overview
We need a top level service that publishes the blog post MR. It should:
- Find the blog post on the canonical repository (the blog post was previously moved to canonical via #19706 (closed))
- Assign it to release managers
- Approve and set it to MWPS
- Post a success/failure message in slack.
This service will be used in the security release pipeline, so we should also post success/failure messages in slack similar to the other release pipeline services and on any failure, we should log instructions of what needs to be done (move the blog to public repository and get it approved and merged).
Edited by Mayra Cabrera