I think those ship with QGIS by default, that's why I didn't include these ones. To check, open the QGIS console and run "import pip; pip.main(['list'])"
Yes, great idea. I'm not sure how the release process works but this should be automated in that process.
See commit message below for details
The wheel file works for any os and any version of Python 3. See wheel file naming convention here: https://peps.python.org/pep-0427/#file-name-convention