fixing test

ml-agents/mlagents/trainers/tests/torch/test_utils.py

             DimensionProperty.TRANSLATIONAL_EQUIVARIANCE,
             DimensionProperty.TRANSLATIONAL_EQUIVARIANCE,
         ),
+        ObservationType.DEFAULT,
     )
     assert not ModelUtils.can_encode_visual(spec)
     assert not ModelUtils.can_encode_vector(spec)