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

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

Author: pre-commit-ci[bot]

vec_inf/cli/_helper.py

@@ -1,8 +1,6 @@
 """Helper classes for the CLI."""
 
-import json
 import os
-from pathlib import Path
 from typing import Any, Optional, Union
 
 import click