Construct frame localsplus in 3.12+ using our own simplified way rather than copypasting from CPython.
This is necessary for 3.13 since we can no longer generate frame `f_locals` before executing the interpreter frame.
We also enable this for 3.12 since the `f_locals` construction between 3.12 and 3.13 is the same, so we can test for correctness with 3.12.
This is also one of the first steps to completing https://github.com/pytorch/pytorch/issues/93753 - we will implement simplified f_locals generation of previous Python versions in the future.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/129185
Approved by: https://github.com/jansel