More 'int's needed

(see previous commit)

Author: evanmason

src/py_eddy_tracker/dataset/grid.py

@@ -744,7 +744,7 @@ def nearest_grd_indice(self, x, y):
         Returns:
 
         """
-        return round(interp(x, self.x_bounds, self.xinterp)), round(interp(y, self.y_bounds, self.yinterp))
+        return round(interp(x, self.x_bounds, self.xinterp)).astype(int), round(interp(y, self.y_bounds, self.yinterp).astype(int))
 
     @property
     def xstep(self):