Add `Python 3.14` to CI Pipeline for Compatibility Testing

[harryswift01]

A new version of Python 3.14 has recently been released. To ensure continued compatibility of CodeEntropy with the latest Python ecosystem, we should update the CI pipeline to include Python 3.14 in the test matrix.

This will help us:

• Detect any breaking changes or deprecations early.
• Ensure users can run CodeEntropy with the latest Python version.
• Maintain forward compatibility and reproducibility across environments.

Tasks:

• Add Python 3.14 to the CI configuration.
• Verify that all tests pass under Python 3.14.
• Update documentation to include the use of Python 3.14.
• Update pyproject.toml to include the use of Python 3.14.