Fix NAN definition in some environments

[92dev]

Usage of non-builtin NAN can trigger error:
"Initializer element is not a compile-time constant"

This happened to me with current code, compiled it on latest toolsets over windows 11
Basically the quickjs.c is using the NAN which is normally a function, as a compile-time constant

The bigger fix is to take the updated QuickJS engine from: https://github.com/quickjs-ng/quickjs

There is another option of using (double)0x7FF8000000000000 manually,
but I opted against anything that relies on magic-numbers that can be per-toolset

[92dev]

More context, here's the fix from the updated QuickJS repo

Vs. your current code:

you can see they opted for my less-preferred solution (using manual magic number)