[3.12] gh-119317: findall instead of traverse for docutils nodes (GH-119319) (#119487)

gh-119317: findall instead of traverse for docutils nodes (GH-119319)
(cherry picked from commit 0867bce45768454ee31bee95ca33fdc2c9d8b0fa)

Co-authored-by: Carlos Meza <hire@carlosmeza.com>