FFI definitions for Python3.11 and later frame access

[davidhewitt]

Discussed in #4759

^{Originally posted by dimaqq December 3, 2024}
Back in 3.9, I used frame->f_stacktop but that got removed in 3.10 and that's reflected in the rust bindings.

Then (for some other purpose) I used frame->f_valuestack but got got removed in 3.11 together with the frame struct reorganisation (the struct is effectively private), and that too is reflected in the rust bindings.

3.11 did bring in an alternative API: PyFrame_GetLocals, etc. I don't see this in the rust bindings, but maybe I'm not looking in the right place?

What's the PyO3 recommended way to poke into the Python stack?

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... looks to me like pyframe.rs bindings are simply out of date, PRs to update the FFI definitions very welcome!