Support order_by using semver in ReleaseFinder

1. Release badge current implementation supports only order_by=released_at.
2. Permanent link to latest release supports only order_by=released_at.

Add support for order_by=semver in the url parameter user input for both these features by extending ReleaseFinder to support order_by=semver.

More details in

1. !80060 (comment 834056689)
2. !78679 (merged)