Add MacOS build to github actions

[bayou-brogrammer]

Is it possible to add a macOS build to the GitHub actions, or is there a reason this has not been done?

[AndreaCatania]

Transfer this to a discussion, to better separate issues, proposals and questions.

I didn't setup it, but Godex is meant to support macOS too. If someone contribute by adding the macOS CI, I'll be glad to merge it 🤘