[3.11] gh-114392: Improve test_capi.test_structmembers (GH-114393) (GH-115030)

Test all integer member types with extreme values and values outside of
the valid range. Test support of integer-like objects. Test warnings for
wrapped out values.
(cherry picked from commit 15f6f048a6ecdf0f6f4fc076d013be3d110f8ed6)