Fix test_width_valid

Author: adamtheturtle

tests/mock_vws/test_add_target.py

@@ -306,7 +306,7 @@ def test_width_valid(
         """
         vws_client.add_target(
             name="example",
-            width=-0.01,
+            width=0.01,
             image=image_file_failed_state,
             application_metadata=None,
             active_flag=True,