5.1.0 with Mac ARM (M1 & M2) binaries

Mac M1 & M2 binaries are available going forward.

GitHub added new Mac ARM action runners which is what we use to build each release.

Thanks to @keitherskine who made all this happen. Not only did he write the original release code for all of the other versions, he jumped on the new Mac runner as soon as it was available.

I'd also like to thank the many people working through the Mac binary confusion, testing and providing work arounds until this runner was available: @Carreau @ndmlny-qs @jordantshaw @gabalafou @v-chojas and many others on the Issue.

If you are a Mac user, please let us know how this works for you.