fixing issue in DatabricksRM preventing indexed text from being returned

- There were two missing code lines that prevent the "text" column from being returned when the "froward" method is executed

Author: lmorosdb

dspy/retrieve/databricks_rm.py

@@ -136,6 +136,8 @@ def forward(self, query: Union[str, List[float]], query_type: str = 'vector') ->
                     else:
                         doc_ids.append(str(val))
                     text = val
+                if col["name"] == self.text_column_name:   
+                    text = val   
                 if col["name"] == 'score':
                     score = val
             docs[text] += score