Support Python 3.10 in vortex-data wheel

[zhuwenxing]

Summary

Lower requires-python in vortex-python/pyproject.toml from >= 3.11 to >= 3.10 and ship 3.10 wheels.

Motivation

Python 3.10 is still under official security maintenance (EOL: 2026-10, see https://devguide.python.org/versions/). Many production environments and managed services (e.g. some AWS Lambda runtimes, Databricks LTS runtimes, conda-forge defaults on certain images) are still pinned to 3.10, which currently blocks users from pip install vortex-data on those platforms.

Current state

https://github.com/vortex-data/vortex/blob/develop/vortex-python/pyproject.toml#L13

requires-python = ">= 3.11"

Feasibility

The runtime dependencies and build toolchain already support 3.10:

• pyarrow >= 17.0.0 — supports 3.9+
• substrait >= 0.23.0 — supports 3.9+
• typing-extensions >= 4.5.0 — supports 3.7+
• maturin >= 1.10 / pyo3 — fully support 3.10

I didn't immediately spot any 3.11-only syntax (e.g. PEP 654 except*, Self from typing, tomllib) in the public Python surface, but maintainers would know best whether anything needs back-porting (e.g. swap typing.Self → typing_extensions.Self, tomllib → tomli).

Proposed change

1. Set requires-python = ">= 3.10" in vortex-python/pyproject.toml
2. Add Programming Language :: Python :: 3.10 classifier
3. Add cp310 target to the wheel build matrix in CI

Happy to send a PR if maintainers are open to this.