* Update to Python 3.9.10 and update libs * Fix tokenize-rt version as 4.2.0 was yanked * PyObjC doesn't seem universal anymore, trying to force a build * Let's upgrade to latest release of PyObjC * Update release notes to reflect PyObjC change Co-authored-by: Nate Walck <nw@stairwell.com> Co-authored-by: Erik Gomez <e@eriknicolasgomez.com>