aPIE error for SciPy 1.14.0, `interp2d` has been removed.

[ShantanuKodgirwar]

For the latest (as of now) SciPy 1.14.0, scipy.interpolate.interp2d is no longer supported and has been deprecated for quite some time now. The aPIE implementation must instead be adapted with RectBivariateSpline or RegularGridInterpolator.