GH-95913: Update what's new in 3.11 for asyncio (GH-97806)

Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
(cherry picked from commit 9fbfa42ece3e0256657ce2594c7c3eb8b3ac8ff3)

Co-authored-by: Guido van Rossum <guido@python.org>