[Lakeflow Stage] Can we use the new VARIANT type?

[nkarpovdb]

https://www.databricks.com/blog/introducing-variant-new-open-standard-semi-structured-data-apache-parquettm-delta-lake
https://docs.databricks.com/aws/en/ingestion/variant#-ingest-data-from-cloud-object-storage-as-variant

I think(?) we can use the VARIANT type in the bronze landing all_events https://github.com/databricks-solutions/caspers-kitchens/blob/main/pipelines/order_items/transformations/transformation.py

Investigate further...