chore: fixed discrepancy in subjects category

metadata_tools/importxls/dish_xls_exporter.py

@@ -109,7 +109,7 @@ class DishXlsExporter:
                     datadec_dict["consent_status_description"] = sheet[33, 1]
 
                     if sheet[20, 1]:
-                        datadec_dict['subject_categories'] = sheet[20, 1].replace(' & ', '_and_')
+                        datadec_dict['subjects_category'] = sheet[20, 1].replace(' & ', '_and_')
 
                     if sheet[12, 1]:
                         lb_code = self.extract_lb_code(sheet[12, 1])