ci.eval.compare: keep warnings as warnings rather than raising them as errors (#444044)

import numpy as np

import os

import pandas as pd

import warnings

from dataclasses import asdict, dataclass

from pathlib import Path

    options = parser.parse_args()

    # Turn warnings into errors

    warnings.simplefilter("error")

    before_stats = Path(options.before)

    after_stats = Path(options.after)