Add milestone issue/MR links to release block footer
In #29020 (closed), we updated Milestones with the ability to be associated with one or more Releases.
One of the features originally planned was a footer for each release block on the Releases page that linked to the issues and merge requests associated with the release (through the associated milestones):
This issue is to re-implement this feature once we have the necessary technical prerequisites finished. Specifically: