Python API 0.4.3

Python API - Changelog

Feature

• Add model.to_jax_function() function to convert a YDF model into a JAX
  function that can be combined with other JAX operations.
• Print warnings when categorical features look like numbers.
• Add support for Python 3.12.

Fix

• Fix cross-validation for non-classification learners.
• Fix missing ydf/model/tree/plotter.js
• Solve dependency collision of YDF Proto between PYDF and TF-DF.