[3.12] GH-95913: Add the release date for Python 3.11 (GH-109750) (#109771)

GH-95913: Add the release date for Python 3.11 (GH-109750)
(cherry picked from commit b10de68c6ceae1076cdc98c890b9802dc81a7f44)

Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>