Get rid of warnings in test

[kwinkunks]

Not filter! Need to find out what's causing them and fix it.

Too much noise from warnings:

src/redflag/distributions.py::redflag.distributions.best_distribution
  overflow encountered in divide

src/redflag/distributions.py::redflag.distributions.cv_kde
src/redflag/distributions.py::redflag.distributions.fit_kde
src/redflag/distributions.py::redflag.distributions.get_kde
src/redflag/distributions.py::redflag.distributions.is_multimodal
src/redflag/distributions.py::redflag.distributions.is_multimodal
src/redflag/distributions.py::redflag.distributions.kde_peaks
  Data does not appear to be standardized, the KDE may be a poor fit.