re-check whitepaper notebooks

[raprasad]

Re-test analysis notebooks with latest pypi

• https://github.com/opendp/smartnoise-samples/tree/master/whitepaper-demos
• add appropriate actions/CI for future tests

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• 2-reidentification-attack.ipynb
• 3-histogram-sample.ipynb
• 4-ml-dp-classifier.ipynb
• 5-ml-synthetic-data.ipynb
• 6-deep-learning-medical.ipynb