Anyone know what, if anything, I need to do to build an Apple Silicon wheel on Github Actions?

Planning to do a new backports.zoneinfo release soon and I'd like to throw it into this wheel building apparatus, if necessary: https://github.com/pganssle/zoneinfo/blob/b77bc75de10380ff53a33c3becc49eb3b582a745/.github/workflows/build-publish.yml#L77