Resolve flake8 error again

Author: fizzi01

tests/test_tcp.py

@@ -1264,7 +1264,10 @@ class _TestSSL(tb.SSLTestCase):
     TIMEOUT = 60
 
     def test_start_tls_buffer_transfer(self):
-        if self.implementation == 'asyncio' and sys.version_info[:2] <= (3, 11):
+        if (
+            self.implementation == 'asyncio'
+            and sys.version_info[:2] <= (3, 11)
+        ):
             # StreamWriter.start_tls() introduced in Python 3.11
             raise unittest.SkipTest(
                 'StreamWriter.start_tls() not supported'