[3.12] Improve the sieve() recipe in the itertools docs (gh-109199) (#109203)

Improve the sieve() recipe in the itertools docs (gh-109199)

Lazier sieve
(cherry picked from commit d3ed9921cdd8ac291fbfe3adf42f7730d3a14dbc)

Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>