SNOW-2684150: Support and provide prebuilt wheels for Python 3.14

[akx]

There are no prebuilt wheels for Python 3.14 (released 7 Oct 2025) for snowflake-connector-python on PyPI, necessitating building the package from source (which can't be done on e.g. the common "slim" Python Docker images; try e.g. docker run -it ghcr.io/astral-sh/uv:python3.14-trixie-slim uv pip install --system snowflake-connector-python to see it fail).

Prebuilt wheels exist on PyPI for Python 3.13 and other older versions.

Related to #2580 (but that's related to free-threaded 3.14, not vanilla 3.14, like this.)

[sfc-gh-dszmolka]

hi @akx indeed at this moment we don't test against Python 3.14 yet. It will be added in the future; at this very moment no timeline can be attached. Thank you for bearing with us !

[akx]

FWIW, for our uses (might not be applicable for yours), I just ripped out snowflake-connector-python altogether and reimplemented what we needed in about 200 lines of code, so we could be unblocked upgrading to Python 3.14.