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

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

tests/test_loop.py

@@ -7,14 +7,17 @@
 
 from aiohttp import web
 from aiohttp.test_utils import AioHTTPTestCase, loop_context
+
 # from tests._pytest_plugin import SUPPORTS_XDIST  # type: ignore[import]
 
 
 @pytest.mark.skipif(
     platform.system() == "Windows", reason="the test is not valid for Windows"
 )
 async def test_subprocess_co(loop: Any) -> None:
-    assert PY_38 or threading.current_thread() is threading.main_thread()  # or SUPPORTS_XDIST
+    assert (
+        PY_38 or threading.current_thread() is threading.main_thread()
+    )  # or SUPPORTS_XDIST
     proc = await asyncio.create_subprocess_shell(
         "exit 0",
         stdin=asyncio.subprocess.DEVNULL,