Store latest builds in a special release (#8337)

Store latest builds in a special release (#8337)

This PR refactors our current github ci action that takes care of storing binaries for releases. It now stores binaries both in the current release (if we are in a release build) or attaches them to a special latest tag. For any regular build on the master branch, it moves the latest tag to the current commit, weeds out the current assets attached to that latest release and adds the current binary. This makes sure we always have the equivalent of our current nightly builds in one place.

Co-authored-by: Andres Noetzli <andres.noetzli@gmail.com>