Update cibuildwheel version
Update cibuildwheel version

This now supports Python 3.9.

Use Python3 explictly on macos for deploy

Specify wheel versions to build

Before, I was specifying what *not* to build, and this made it so when
new things I also did not want to build got added I was building those
also.

Now, I am being more specific about what I want to build so hopefully I
get no surprises.

SethMMorton/fastnumbers,SethMMorton/fastnumbers,SethMMorton/fastnumbers