Fix coordinates grid in test_ctf

nabu/preproc/tests/test_ctf.py

@@ -88,7 +88,7 @@ class TestCtf:
         )
 
         my_flat = scipy.interpolate.interpn(
-            (np.arange(my_flat.shape[1]), np.arange(my_flat.shape[0])),
+            (np.arange(my_flat.shape[0]), np.arange(my_flat.shape[1])),
             my_flat,
             new_coordinates,
             bounds_error=False,