[Feature Request] Update build-gems GH workflow smoke test to use macOS Intel

[cretz]

Describe the solution you'd like

macos-intel (i.e. macos-13) runner had to be removed from build-gems run because it cannot download the CLI to do a smoke test presumably because it does not have latest CA certificates. It is a low priority platform anyways and updating the certificates is non-trival (e.g. here's Python's solution: https://github.com/python/cpython/blob/d8fa40b08da60a711311751891fa830cb4ae77f3/Mac/BuildScript/resources/install_certificates.command).