WIP: Add support for Python 3.14

[weiji14]

Python 3.14 to be released on 7 Oct 2025, changelog at https://docs.python.org/3.14/whatsnew/3.14.html

Related to conda-forge/rustac-feedstock#9

[weiji14]

Error from https://github.com/stac-utils/rustac-py/actions/runs/17749865147/job/50442524464?pr=159#step:7:16

Using CPython 3.14.0rc2 interpreter at: /home/runner/.local/bin/python3.14
Creating virtual environment at: .venv
Resolved 149 packages in 0.68ms
error: Distribution `obstore==0.8.1 @ registry+[https://pypi.org/simple`](https://pypi.org/simple%60) can't be installed because it doesn't have a source distribution or wheel for the current platform

hint: You're using CPython 3.14 (`cp314`), but `obstore` (v0.8.1) only has wheels with the following Python ABI tags: `cp311`, `cp312`, `cp313`

Need to get obstore to release an sdist or Python 3.14 wheels on PyPI it seems.

[weiji14]

Ok, now blocked by pyogrio==0.11.0 (dependency of geopandas) at https://github.com/stac-utils/rustac-py/actions/runs/17779980323/job/50536783872?pr=159#step:7:128

   Building pandas==2.3.0
  × Failed to build `pyogrio==0.11.0`
  ├─▶ The build backend returned an error
  ╰─▶ Call to `setuptools.build_meta.build_wheel` failed (exit status: 1)

      [stderr]
      Traceback (most recent call last):
        File "<string>", line 11, in <module>
          wheel_filename =
      backend.build_wheel("/home/runner/work/_temp/setup-uv-cache/builds-v0/.tmpfWeulK",
      {}, None)
        File
      "/home/runner/work/_temp/setup-uv-cache/builds-v0/.tmpztPHC1/lib/python3.14/site-packages/setuptools/build_meta.py",
      line 432, in build_wheel
          return _build(['bdist_wheel'])
        File
      "/home/runner/work/_temp/setup-uv-cache/builds-v0/.tmpztPHC1/lib/python3.14/site-packages/setuptools/build_meta.py",
      line 423, in _build
          return self._build_with_temp_dir(
                 ~~~~~~~~~~~~~~~~~~~~~~~~~^
              cmd,
              ^^^^
          ...<3 lines>...
              self._arbitrary_args(config_settings),
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
          )
          ^
        File
      "/home/runner/work/_temp/setup-uv-cache/builds-v0/.tmpztPHC1/lib/python3.14/site-packages/setuptools/build_meta.py",
      line 404, in _build_with_temp_dir
          self.run_setup()
          ~~~~~~~~~~~~~~^^
        File
      "/home/runner/work/_temp/setup-uv-cache/builds-v0/.tmpztPHC1/lib/python3.14/site-packages/setuptools/build_meta.py",
      line 317, in run_setup
          exec(code, locals())
          ~~~~^^^^^^^^^^^^^^^^
        File "<string>", line 154, in <module>
        File "<string>", line 129, in get_gdal_config
        File "<string>", line 85, in get_gdal_config
        File "<string>", line 39, in read_response
        File
      "/home/runner/.local/share/uv/python/cpython-3.14.0rc2-linux-x86_64-gnu/lib/python3.14/subprocess.py",
      line 472, in check_output
          return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
                 ~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                     **kwargs).stdout
                     ^^^^^^^^^
        File
      "/home/runner/.local/share/uv/python/cpython-3.14.0rc2-linux-x86_64-gnu/lib/python3.14/subprocess.py",
      line 554, in run
          with Popen(*popenargs, **kwargs) as process:
               ~~~~~^^^^^^^^^^^^^^^^^^^^^^
        File
      "/home/runner/.local/share/uv/python/cpython-3.14.0rc2-linux-x86_64-gnu/lib/python3.14/subprocess.py",
      line 1038, in __init__
          self._execute_child(args, executable, preexec_fn, close_fds,
          ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                              pass_fds, cwd, env,
                              ^^^^^^^^^^^^^^^^^^^
          ...<5 lines>...
                              gid, gids, uid, umask,
                              ^^^^^^^^^^^^^^^^^^^^^^
                              start_new_session, process_group)
                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File
      "/home/runner/.local/share/uv/python/cpython-3.14.0rc2-linux-x86_64-gnu/lib/python3.14/subprocess.py",
      line 1970, in _execute_child
          raise child_exception_type(errno_num, err_msg, err_filename)
      FileNotFoundError: [Errno 2] No such file or directory: 'gdal-config'

      hint: This usually indicates a problem with the package or the build
      environment.
  help: `pyogrio` (v0.11.0) was included because `rustac:dev` depends on
        `geopandas` (v1.1.0) which depends on `pyogrio`

Need to wait for geopandas/pyogrio#560 to add Python 3.14 support (or figure out GDAL deps 😛)