SNOW-295953: Docs fix

Author: sfc-gh-fpawlowski

src/snowflake/connector/cursor.py

@@ -466,6 +466,7 @@ def stats(self) -> QueryResultStats | None:
         - num_rows_inserted: Number of rows inserted
         - num_rows_deleted: Number of rows deleted
         - num_rows_updated: Number of rows updated
+        - num_dml_duplicates: Number of duplicates in DML statement
 
         Returns None on each position if no DML stats are available.
         """