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

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

tests/conftest.py

@@ -8,10 +8,10 @@
 
 import pytest
 from anyio import Event, create_task_group
-from pycrdt_websocket import ASGIServer, WebsocketServer
 from hypercorn import Config
 from hypercorn.asyncio import serve
-from utils import Websocket, ensure_server_running
+from pycrdt_websocket import ASGIServer, WebsocketServer
+from utils import ensure_server_running
 
 # workaround until these PRs are merged:
 # - https://github.com/yjs/y-websocket/pull/104

tests/test_pycrdt_yjs.py

@@ -5,7 +5,7 @@
 from pathlib import Path
 
 import pytest
-from anyio import Event, create_task_group, move_on_after, sleep
+from anyio import Event, create_task_group, move_on_after
 from httpx_ws import aconnect_ws
 from pycrdt import Doc, Map
 from pycrdt_websocket import WebsocketProvider