[Dy2stat] Fix test_yolov3 to Run Correctly on Win/Mac (#27666)

We decreased the batch size on CPU so that it can run correctly on Win/Mac machine, this may cause the delta to be larger. So I set larger delta value.

python/paddle/fluid/tests/unittests/dygraph_to_static/test_yolov3.py

@@ -163,7 +163,8 @@ class TestYolov3(unittest.TestCase):
         dygraph_loss = train(to_static=False)
         static_loss = train(to_static=True)
         self.assertTrue(
-            np.allclose(dygraph_loss, static_loss),
+            np.allclose(
+                dygraph_loss, static_loss, atol=1e-5, rtol=1e-3),
             msg="dygraph_loss: {} \nstatic_loss: {}".format(dygraph_loss,
                                                             static_loss))