fix: use case insensitive check in populate exec ed command (#4373)

* fix: use case insensitive check in populate exec ed command

course_discovery/apps/course_metadata/management/commands/populate_executive_education_data_csv.py

@@ -329,7 +329,7 @@ def get_transformed_data(self, partially_filled_csv_dict, product_dict):
             'end_date': product_dict['variant']['endDate'],
             'restriction_type': (
                 CourseRunRestrictionType.CustomB2BEnterprise.value
-                if product_dict['variant'].get('websiteVisibility', None) == 'private'
+                if product_dict['variant'].get('websiteVisibility', 'None').lower() == 'private'
                 else None
             ),
             'length': product_dict['durationWeeks'],