Python 3.14 removed ast.Str

[0-wiz-0]

ast.Str was deprecated in 3.8, and finally removed in Python 3.14, leading to:

* Building wheel...
Traceback (most recent call last):
  File "/usr/pkg/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
    main()
    ~~~~^^
  File "/usr/pkg/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 373, in main
    json_out["return_val"] = hook(**hook_input["kwargs"])
                             ~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/pkg/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 280, in build_wheel
    return _build_backend().build_wheel(
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        wheel_directory, config_settings, metadata_directory
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/pkg/lib/python3.14/site-packages/setuptools/build_meta.py", line 432, in build_wheel
    return _build(['bdist_wheel'])
  File "/usr/pkg/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 "/usr/pkg/lib/python3.14/site-packages/setuptools/build_meta.py", line 404, in _build_with_temp_dir
    self.run_setup()
    ~~~~~~~~~~~~~~^^
  File "/usr/pkg/lib/python3.14/site-packages/setuptools/build_meta.py", line 512, in run_setup
    super().run_setup(setup_script=setup_script)
    ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/pkg/lib/python3.14/site-packages/setuptools/build_meta.py", line 317, in run_setup
    exec(code, locals())
    ~~~~^^^^^^^^^^^^^^^^
  File "<string>", line 38, in <module>
  File "<string>", line 20, in version
AttributeError: module 'ast' has no attribute 'Str'

because setup.py uses ast.Str.