numpy 1.24.3 support for comparisons with `pd.Timedelta` and `pd.Timestamp`

[Dr-Irv]

I did a poetry update and my environment got updated to numpy 1.24.3. In that version of numpy, comparisons of numpy timedelta or timestamp objects with pandas Timedelta and Timestamp objects now return a bool instead of np.bool_, when the numpy object is on the LHS of the comparison. The type declarations didn't change - they still return Any.

So we need to do the following:

1. Update the pyproject.toml to point to numpy 1.24.3
2. Update tests of the following form in test_scalars.py to have check compare the result to bool instead of np.bool_:

check(assert_type(c_timedelta64 > td, Any), np.bool_)

I think there are about 14 such tests.