[BE-3318] Update Iceberg Example to use TPCH SF1 dataset on S3

[sahil1105]

(As title)

[review-notebook-app[bot]]

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[sahil1105]

Thank you @sahil1105. Approved, assuming it's been tested e2e on trial size already ;)

Yes, I tested on dev on 2 x c5.2xlarge cluster.