Update Dataform example of BQ udf unit testing#488

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danieldeleo wants to merge 4 commits intomasterfrom

bigquery_udf_unit_testing_updates

Commits on Apr 8, 2025

Update dataform udf testing example
ddeleo
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update to latest dataform core version
ddeleo
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update the main udf unit testing source code
ddeleo
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update all test_cases.js files in migration/ folder
ddeleo
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