v3.13.15
[3.13] gh-151941: Fix Sphinx reference warnings in `Doc/c-api/` (GH-152044) (GH-154922)
[3.13] gh-141004: Improve `make check-c-api-docs` (GH-143564) (GH-143594)
[3.13] gh-142859: Add `Tools/check-c-api-docs` to mypy check (GH-142860) (#142870)