Support Python 3.13

[GregoryComer]

🚀 The feature, motivation and pitch

PyTorch 2.5 and above support Python 3.13 as as experimental. It would be desirable for us to support 3.13, as well. It would be nice to have, from a developer experience perspective, as it makes it more likely that ET "just works" for users on a wider variety of systems.

In order to support Python 3.13, we will need to add/update CI and nightly/release build jobs to use Python 3.13.

Alternatives

No response

Additional context

No response

RFC (Optional)

No response

cc @larryliu0820 @mergennachin @byjlw

[mergennachin]

Yeah, we should support 3.13 soon, probably sometime before 1.0 release. Putting into Backlog for now.