Merge branch 'main' into superopt

* main: (24 commits)
  gh-98040: Move the Single-Phase Init Tests Out of test_imp (gh-102561)
  gh-83861: Fix datetime.astimezone() method (GH-101545)
  gh-102856: Clean some of the PEP 701 tokenizer implementation (#103634)
  gh-102856: Skip test_mismatched_parens in WASI builds (#103633)
  gh-102856: Initial implementation of PEP 701 (#102855)
  gh-103583: Add ref. dependency between multibytecodec modules (#103589)
  gh-83004: Harden msvcrt further (#103420)
  GH-88342: clarify that `asyncio.as_completed` accepts generators yielding tasks (#103626)
  gh-102778: IDLE - make sys.last_exc available in Shell after traceback (#103314)
  gh-103582: Remove last references to `argparse.REMAINDER` from docs (#103586)
  gh-103583: Always pass multibyte codec structs as const (#103588)
  gh-103617: Fix compiler warning in _iomodule.c (#103618)
  gh-103596: [Enum] do not shadow mixed-in methods/attributes (GH-103600)
  GH-100530: Change the error message for non-class class patterns (GH-103576)
  gh-95299: Remove lingering setuptools reference in installer scripts (GH-103613)
  [Doc] Fix a typo in optparse.rst (#103504)
  gh-101100: Fix broken reference `__format__` in `string.rst` (#103531)
  gh-95299: Stop installing setuptools as a part of ensurepip and venv (#101039)
  GH-103484: Docs: add linkcheck allowed redirects entries for most cases (#103569)
  gh-67230: update whatsnew note for csv changes (#103598)
  ...