improve name of steps

use official sources

Forgot to bump the beta version number

Trying to get cadquery-vtk set as a separate dependency

Trying to make sure only one set of metadata is found for VTK

Bumped up Ubuntu version

Pin occt version for Linux

Giving up on trying to control the MacOS build versions

Updated release file for new version

Run build workflow on ubuntu-20.04

Needed to install the built manylinux_2_31 wheel for smoke test.