gh-91896: Fixup some docs issues following ByteString deprecation by AlexWaygood · Pull Request #104422 · python/cpython

I'd like to get this merged so we can get CI green, but we should consider whether the import * case is important enough to drop the warning. This would be annoying:

% ./python.exe -Werr
Python 3.12.0a7+ (heads/tvobject-dirty:bc3757969b, May 12 2023, 06:50:26) [Clang 14.0.0 (clang-1400.0.29.202)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from typing import *
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/jelle/py/cpython/Lib/typing.py", line 3328, in __getattr__
    warnings._deprecated("typing.ByteString", remove=(3, 14))
  File "/Users/jelle/py/cpython/Lib/warnings.py", line 529, in _deprecated
    warn(msg, DeprecationWarning, stacklevel=3)
DeprecationWarning: 'typing.ByteString' is deprecated and slated for removal in Python 3.14
>>>