[3.13] gh-131885: Update documented signatures for `csv.{writer,reader}` (GH-136085)#136121

ZeroIntensity merged 1 commit intopython:3.13python/cpython:3.13from

miss-islington:backport-75f4059-3.13miss-islington/cpython:backport-75f4059-3.13Copy head branch name to clipboard