[3.11] gh-100637: Fix int and bool __sizeof__ calculation to include the 1 element ob_digit array for 0 and False (GH-100663) (#100717)

gh-100637: Fix int and bool __sizeof__ calculation to include the 1 element ob_digit array for 0 and False (GH-100663)

Fixes behaviour where int (and subtypes like bool) __sizeof__ under-reports true size as it did not take into account the size 1 `ob_digit` array for the zero int.

(cherry picked from commit d7e7f79ca7c2029e46a06d21a7a5abea631b5d13)

Co-authored-by: Ionite <dev@ionite.io>
Co-authored-by: Mark Dickinson <dickinsm@gmail.com>