[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

tests/inferers/test_zarr_avg_merger.py

@@ -12,8 +12,6 @@
 from __future__ import annotations
 
 import unittest
-import warnings
-from typing import Any
 
 import numpy as np
 import torch