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

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

Author: pre-commit-ci[bot]

src/_pytest/threadexception.py

@@ -1,17 +1,12 @@
 from __future__ import annotations
 
-from contextlib import contextmanager
 import collections
 from collections.abc import Callable
 import functools
 import sys
 import threading
 import traceback
-from types import TracebackType
-from typing import Any
 from typing import Callable
-from typing import Generator
-from typing import Iterator
 from typing import NamedTuple
 from typing import TYPE_CHECKING
 import warnings

testing/example_scripts/hook_exceptions/conftest.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import Iterator
+from collections.abc import Iterator
 
 import pytest