Fix Voronoi neighbor computation and plotting compatibility with updated SciPy and NumPy #1
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Delaunay object in SciPy's scipy.spatial module no longer has an attribute called vertices. This attribute was deprecated in recent versions of SciPy and has been replaced by simplices.
ptp was removed from the ndarray class in NumPy 2.0. The solution is to replace vor.points.ptp(axis=0) with np.ptp(vor.points, axis=0).
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Fixed AttributeError in voronoi_neighbors function: replaced tri.vertices with tri.simplices to match updated SciPy Delaunay API.
Updated voronoi_plot_2d to use np.ptp(vor.points, axis=0) instead of ptp method, aligning with changes in NumPy 2.0.
These changes resolve errors when running the --filter-voronoi option and ensure compatibility with the latest SciPy and NumPy versions.