Release v2.0.6
Fix macOS build issue (#129) Specifically, I've updated actions/setup-go to v5, and removed maxim-lobanov/setup-xcode@v1. According to the comment, this was required until the GitHub macOS runner was 11.x based, and according to https://github.com/actions/runner-images it is now on macOS 14. We also now upload CI build artifacts, which is useful for testing purposes.