[3.14] gh-141004: Document C APIs for dictionary keys, values, and items (GH-141009)#141512

ZeroIntensity merged 1 commit intopython:3.14python/cpython:3.14from

miss-islington:backport-f72768f-3.14miss-islington/cpython:backport-f72768f-3.14Copy head branch name to clipboard