np.int deprecated in bookworm

[macckone]

np.int is deprecated in bookworm. we need to use np.int32.

127,128c127,128 < window_size = np.abs(np.int32(window_size)) < order = np.abs(np.int32(order)) --- > window_size = np.abs(np.int(window_size)) > order = np.abs(np.int(order))