feat(api): add media news sorting

tests/apps/organizations/test_api_v2.py

@@ -207,6 +207,21 @@ class OrganizationsApiV2Test(APITestCase):
         )
         self.assertIn("/api/v2/organizations/{uid}/sources/", paths)
         self.assertIn("/api/v2/organization-sources/{uid}/records/", paths)
+        source_record_list_operation = paths[
+            "/api/v2/organization-source-records/"
+        ]["get"]
+        source_record_parameters = {
+            parameter["name"]: parameter
+            for parameter in source_record_list_operation["parameters"]
+        }
+        source_record_ordering_values = source_record_parameters["ordering"]["enum"]
+        for ordering_value in (
+            "payload__sentiment",
+            "-payload__sentiment",
+            "payload__news_source",
+            "-payload__news_source",
+        ):
+            self.assertIn(ordering_value, source_record_ordering_values)
 
     def test_retrieve_returns_item_by_uid(self):
         organization = create_frontend_organization(