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

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

Author: pre-commit-ci[bot]

pylint/reporters/json_reporter.py

@@ -9,7 +9,7 @@
 import json
 from typing import TYPE_CHECKING, Any, Optional
 
-from pylint.interfaces import UNDEFINED, Confidence
+from pylint.interfaces import UNDEFINED
 from pylint.message import Message
 from pylint.reporters.base_reporter import BaseReporter
 from pylint.typing import MessageLocationTuple