Add release workflow

[jdidion]

Add a GitHub actions workflow for releasing that:

• Publishes to crates.io
• Builds binaries for the most common platforms [(linux, mac) * (x86, arm)] and attaches them to the GitHub release

[jdidion]

If we can agree to use conventional commits in this repo, then I think the best approach is to have two workflows:

1. Manually triggered release workflow, which uses release-plz to draft the GitHub release (including generating the change log from commit messages and tagging with the appropriate version tag), publish to crates.io, and bump the version.
2. Workflow triggered by publishing the GitHub release, which uses cargo-dist to build binaries, attach them to the release, and do other stuff like create homebrew formula (and hopefully conda recipe in the future).

[nh13]

Agreed