Latest Release Tag

**Is your feature request related to a problem? Please describe.**
I have not been able to find a good way to get the latest release for the AWS CLI.

**Describe the solution you'd like**
I would like the aws-cli repository to utilize the latest release feature so that the latest release can be easily checked using https://docs.github.com/en/rest/reference/repos#get-the-latest-release. I realize that having two major releases maintained simultaneously may complicate this, but as v1 is maintained for legacy support, it seems reasonable to just tag the latest v2 release.

**Describe alternatives you've considered**
It is possible to query https://api.github.com/repos/aws/aws-cli/tags and parse the output, but it is kind of clunky. Shy of this, people might resort to just downloading the latest release and checking it against their current version (https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2-linux.html#cliv2-linux-upgrade), which generates a lot of unnecessary traffic.