Add release links to tags on Tags page

What does this MR do?

Adds a link to the Releases page to every tag associated to a release on the Tags page as described in #29020 (closed):

UX specs

See image above.

Note that it is never possible to associate more than one release to a tag, as the image above implies. A tag can be associated with at most one release.

Screenshots

Without an associated release (no change):

With an associated release: