chore(python version): Drop Python 3.9 support and add Python 3.14 support #2094
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Update minimum required Python version to 3.10 in pyproject.toml and scripts. Add Python 3.14 to supported/tested versions in CI workflows and remove Python 3.9 from all relevant matrices and classifiers. Remove test skip logic for Python 3.9 where no longer needed.
Reference: https://www.python.org/downloads/release/python-3140/
pyogrio
has a release that supports 3.14; Support added in geopandas/pyogrio@e88af71; Support for min version 3.10 added in geopandas/pyogrio@56a5961