Draft: Update the monthly release info metric with latest tagged commit

What does this MR do and why?

For gitlab-com/gl-infra/delivery#20023 (closed)

This MR is to update the monthly release metric during tagging processes

• The update should happen every time the release for the release version gets tagged, regardless of release candidate of final release.

This MR is closed for now to focus on _status metric for monthly and patch releases for the first iteration, but feel free to re-open or reference it when we want to implement a sha-containing metric!