Fix update_description

This was malformed. My mistake. Let's fix it.

Author: palewire

datawrapper/__main__.py

@@ -904,8 +904,7 @@ def update_description(
             raise InvalidRequest(msg)
 
         # Update the chart using the update_chart method
-        metadata = {"metadata": {"describe": _query}}
-        return self.update_chart(chart_id, metadata=metadata)
+        return self.update_chart(chart_id, metadata={"describe": _query})
 
     def delete_chart(self, chart_id: str) -> bool:
         """Deletes a chart, table or map.