I know what is the issue. You are trying to use v20.07.2, which is an unreleased binary - and the checksum will fail cuz it is an untagged release as it is a draft. I have to see how to remove draft releases from the list.
Until there @biachaudhry, please use v20.07.1 instead.
Update
Problem solved, it is fixed on the master. Soon it will be live.