fix np.int warning in operator (#3344)

ppdet/data/transform/operators.py

@@ -1506,8 +1506,8 @@ class Cutmix(BaseOperator):
         w = max(img1.shape[1], img2.shape[1])
         cut_rat = np.sqrt(1. - factor)
 
-        cut_w = np.int(w * cut_rat)
-        cut_h = np.int(h * cut_rat)
+        cut_w = np.int32(w * cut_rat)
+        cut_h = np.int32(h * cut_rat)
 
         # uniform
         cx = np.random.randint(w)

static/ppdet/data/transform/operators.py

@@ -1343,8 +1343,8 @@ class CutmixImage(BaseOperator):
             w = max(img1.shape[1], img2.shape[1])
             cut_rat = np.sqrt(1. - factor)
 
-            cut_w = np.int(w * cut_rat)
-            cut_h = np.int(h * cut_rat)
+            cut_w = np.int32(w * cut_rat)
+            cut_h = np.int32(h * cut_rat)
 
             # uniform
             cx = np.random.randint(w)