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

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

Author: pre-commit-ci[bot]

benchmark/_blacksheep.py

@@ -9,6 +9,8 @@
     :license: BSD, see LICENSE for more details.
 """
 import uvicorn
+
+
 # from blacksheep.server import Application
 # from blacksheep.server.responses import text