Please avoid using numpy._typing

The drp_qa utils/math.py has from numpy._typing import ArrayLike, which only exists on the pfsa installation of numpy (and not on the summit, tiger, or vanilla installations) – that appears to have been added after the first installation of numpy. In this case the public from numpy.typing import ArrayLike seems to exist, though I did not check whether it works.

If we do need to install _typing, it would be nice to know why and from where it came. The other pfsa-specific package seems to be array_api.