ENH: You can now drop NPY_MAXARGS starting with NPY_2_3_API_VERSION

[seberg]

As promised, you can now [1] do a runtime check for PyArray_RUNTIME_VERSION >= NPY_2_3_API_VERSION. If this is the case, NPY_MAXARGS is irrelevant (integer number of operands supported).
NumPy always raised an error for you on older versions, but I suppose it may make sense to keep the check to make that error clearer.

Of course, NE_MAXARGS is still used for numexpr internal stack allocations. That could be arbitrarily bumped or refactored away now.

[1] Well, may want to wait a few days for the next nightly (the version macro is also slightly off).

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Message to comment on stale issues. If none provided, will not mark issues stale

[FrancescAlted]

Please do not mark as stale.

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