[docs] [issue44021] enum docs in 3.10: missing "New in version 3.10"

Change by Karthikeyan Singaravelan <tir.karthi@gmail.com>: ---------- nosy: +barry, eli.bendersky, ethan.furman _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue44021> _______________________________________