style: fix ruff formatting for patch.object call

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: Varun Sharma

tests/server/mcpserver/test_server.py

@@ -308,9 +308,7 @@ async def test_handle_call_tool_defensive_exception_handler(self):
         mcp.add_tool(tool_fn)
 
         async with Client(mcp) as client:
-            with patch.object(
-                mcp, "call_tool", new_callable=AsyncMock, side_effect=RuntimeError("internal db leak")
-            ):
+            with patch.object(mcp, "call_tool", new_callable=AsyncMock, side_effect=RuntimeError("internal db leak")):
                 result = await client.call_tool("tool_fn", {"x": 1, "y": 2})
                 assert result.is_error is True
                 content = result.content[0]