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

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

src/anyio/_core/_sockets.py

@@ -223,7 +223,9 @@ async def try_connect(remote_host: str, event: Event) -> None:
             cause = (
                 oserrors[0]
                 if len(oserrors) == 1
-                else ExceptionGroup("multiple connection attempts failed", oserrors.copy())
+                else ExceptionGroup(
+                    "multiple connection attempts failed", oserrors.copy()
+                )
             )
             raise OSError("All connection attempts failed") from cause
     finally: