Fix code formatting

Apply ruff format to fix pre-commit hook failure

Author: certainly-param

tests/client/test_streamable_http_resource_leak.py

@@ -63,9 +63,7 @@ def __init__(self) -> None:
         super().__init__("http://test")
         self.mock_response = MockResponse()
 
-    async def _handle_sse_response(
-        self, response: MockResponse, ctx: Any, is_initialization: bool = False
-    ) -> None:
+    async def _handle_sse_response(self, response: MockResponse, ctx: Any, is_initialization: bool = False) -> None:
         """
         This mimics the actual bug in the real code.