change merge change test to make it pass

tests/load/pipeline/test_write_disposition_changes.py

@@ -127,9 +127,15 @@ def source():
     # schemaless destinations allow adding of root key without the pipeline failing
     # for now this is only the case for dremio
     # doing this will result in somewhat useless behavior
-    destination_allows_adding_root_key = destination_config.destination == "dremio"
+    destination_allows_adding_root_key = destination_config.destination in ["dremio", "clickhouse"]
 
     if destination_allows_adding_root_key and not with_root_key:
+        pipeline.run(
+            s,
+            table_name="items",
+            write_disposition="merge",
+            loader_file_format=destination_config.file_format,
+        )
         return
 
     # without a root key this will fail, it is expected as adding non-nullable columns should not work