[3.9] bpo-37674: Tweak imp module deprecation note in the docs (GH-20480) (GH-20859)



(cherry picked from commit dea3223740127ac13f984c1d38f127ab6701af44)


Co-authored-by: Zackery Spytz <zspytz@gmail.com>

Automerge-Triggered-By: @brettcannon
1 file changed