PEP 825: assorted updates (#5086)

Co-authored-by: Ralf Gommers <ralf.gommers@gmail.com>
Co-authored-by: konsti-openai <konsti@openai.com>
Co-authored-by: Michał Górny <mgorny@gentoo.org>
Co-authored-by: Carol Willing <carolcode@willingconsulting.com>
Signed-off-by: Michał Górny <mgorny@quansight.com>

Author: 4 people