Migrate to use Pooch for data ingestion and update example data source #789

Job	Run time
mypy	3m 45s
py3.13 \| macos \| integration tests	11m 53s
py3.13 \| macos \| unit tests	10m 3s
py3.13 \| ubuntu \| integration tests	14m 26s
py3.13 \| ubuntu \| unit tests	12m 5s
py3.13 \| windows \| integration tests	28m 33s
py3.13 \| windows \| unit tests	14m 10s
py3.10 \| ubuntu \| integration tests	13m 10s
py3.10 \| ubuntu \| unit tests	12m 3s
py3.11 \| ubuntu \| unit tests	11m 21s
py3.12 \| ubuntu \| unit tests	11m 19s
merge-test-artifacts	2s
	2h 22m 50s

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