Unit tests: failure with py3.14 (alpha) due to removal of ast.Num

[jayaddison]

A unit test build failure is occurring for inflect in GitHub Actions for Python 3.14 (more specifically, cpython 3.14.0-alpha.2).

This appears to be due to the removal of ast.Num from the Python stdlib in v3.14 (prerelease, currently) as documented here: https://docs.python.org/3.14/whatsnew/3.14.html#removed

[jayaddison]

The recommended replacement/migration for ast.Num is to use ast.Constant instead -- and it is available in version 3.9 and onwards of Python -- matching the minimum baseline for inflect of Python 3.9:

inflect/pyproject.toml

Line 26 in eaf1a9b

requires-python = ">=3.9"

I'll attempt to provide a pull request to resolve this problem; GitHub Actions CI should provide confirmation of whether a fix works as intended (I don't currently have Py3.14 installed locally, but may consider installing that during development).