bump getdeps Python version to fix mac build
bump getdeps Python version to fix mac build

Summary: Upgrade Python from 3.8.12 to 3.8.13 to get https://bugs.python.org/issue45405. This fixes ./configure on newer clangs.

Reviewed By: DurhamG

Differential Revision: D36559625

fbshipit-source-id: 921578659e083c37babea8c136dd8933639b63df

facebook/watchman,facebook/watchman,facebook/watchman,facebook/watchman,facebook/watchman,facebook/watchman,facebook/watchman,facebook/watchman,facebook/watchman