gh-36802: Python toolchain as wheel packages
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We switch several pure Python packages that are part of
`PYTHON_TOOLCHAIN` from normal to wheel packages.
The only time that we carried a patch for any of these packages was in
2014–2016, a patch for pyparsing.
This reduces the complexity of our SPKGs, in line with previous PRs
#36267, #36429, #36129, #36794.
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URL: https://github.com/sagemath/sage/pull/36802
Reported by: Matthias Köppe
Reviewer(s): Dima Pasechnik
