[TEST] Prepare test_cumulative_trapezoid for SciPy 1.12 (#121541)
Follow up on #119326 with addressed comment: https://github.com/pytorch/pytorch/pull/119326#issuecomment-1939428705:
> I'd like to propose a slightly different approach. We could check if scipy is version `1.12.0`. If so, overload `scipy_cumulative_trapezoid` with a function that specifically checks `t.shape[axis] == 0`, and in that case return an array of the same shape as `t`, which is the expected behavior as far as I understand. That way, we're not just skipping the test cases
I would like to add that the version check is not necessary as in any case the outcome is the same.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/121541
Approved by: https://github.com/nWEIdia, https://github.com/albanD
