dev/release: do not create GitHub release if release is old

Created by: bobheadxi

The recent 3.35.2 patch release shows up as the latest release, as reported by @eseliger :

So apparently GitHub just treats whatever release was published most recently as latest, which is kind of right but also doesn't feel like the way it should work but oh well 😅 https://github.community/t/latest-release-isnt-the-real-latest/2244/6

This change adds an additional check to see if the latest release is newer than the release being published and if it is, we don't publish a GitHub release for it. I think this is fine because folks watching the repo are likely watching for the latest and greatest, not a patch fix to an older release. I think?