Merge with distutils fac564f

[jaraco]

• Remove bdist_msi.
• Remove problems, in part because they cause pytest-black fails with export-all in comment shopkeep/pytest-black#62, but also because they're probably of limited relevance.
• Extract method for mangling the base path. Ref New test_set_include_dirs leaves files in working directory distutils#169.
• Suppress path mangling when running tests. Ref New test_set_include_dirs leaves files in working directory distutils#169.
• Deprecate behavior in _mangle_base. Ref New test_set_include_dirs leaves files in working directory distutils#169.
• Remove bdist_wininst.
• 👹 Feed the hobgoblins (delint).
• Remove more references to bdist_wininst.
• Remove more references to bdist_msi
• Remove another reference to wininst

Summary of changes

Closes

Pull Request Checklist

• Changes have tests
• News fragment added in changelog.d/.
  (See documentation for details)