Parse Date/Time/TimeZone triplets in samples and WQP#272

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thodson-usgs wants to merge 10 commits intoDOI-USGS:mainfrom

thodson-usgs:parse-samples-wqp-datetime

Commits on May 7, 2026

Parse Date/Time/TimeZone triplets in samples and WQP responses

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Address /simplify findings on attach_datetime_columns

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Drop str.removesuffix to keep py38 compatibility

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Bump declared Python floor to 3.9 to match CI

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Apply ruff format under the new py39 target

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Potential fix for pull request finding

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Note Python 3.9 floor bump in NEWS

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Restore consistent parenthesized-with form

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Mark attach_datetime_columns as private and add type hints

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Self-document _TIME_TZ_SUFFIXES with example column names

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