[3.11] gh-104036: Fix direct invocation of test_typing (GH-104037) by miss-islington · Pull Request #104039 · python/cpython

Previously, `python -m test test_typing` worked, but `python Lib/test/test_typing.py` did not.
(cherry picked from commit 4181d07)

Co-authored-by: Kirill Podoprigora <80244920+Eclips4@users.noreply.github.com>