Context

What is the purpose of this PR? Is it to

• add a new feature
• fix a bug
• update tests and/or documentation
• other (please add here)

At the moment, PyArrow does not have a build for Python 3.13. PyArrow is a dependency of Hugging Face Datasets, which torchtune depends upon. Since PyArrow does not have this build, the nightly build of torchtune on Python 3.13 fails. Since it appears that PyArrow's support for Python 3.13 is imminent, we are choosing to temporarily disable Python 3.13 builds until PyArrow v18 comes out on PyPI.

cc @atalman

Changelog

What are the changes made in this PR?

• Add filter to our build script

Test plan

Please make sure to do each of the following if applicable to your PR. If you're unsure about any one of these just ask and we will happily help. We also have a contributing page for some guidance on contributing.

• run pre-commit hooks and linters (make sure you've first installed via pre-commit install)
• add unit tests for any new functionality
• update docstrings for any new or updated methods or classes
• run unit tests via pytest tests
• run recipe tests via pytest tests -m integration_test
• manually run any new or modified recipes with sufficient proof of correctness
• include relevant commands and any other artifacts in this summary (pastes of loss curves, eval results, etc.)