Display attribute_error with msg_error

[fredroy]

When using a wrong attribute to an object, the error message is printed with a "Deprecation" status

[DEPRECATED] [SofaPython3::SceneLoader] Unable to completely load the scene from file '/Users/fred/Work/sofa/SofaLnRobotics/scenes/demos/Demo_05_simple_data_inverse.py'.
Python exception:
  AttributeError: Unable to find attribute: EdgeSetTopologyContainer
   You possibly wanted to access:
   - The object named 'EdgeSetTopologyModifier' (80% match)

it seems that the "AttributeError" exception from pybind is also a "DeprecationWarning" apparently ?? 🤔 (according to the test)
so this PR tests if the exception is a DeprecationWarning and NOT an AttributeError to display as "deprecated"

Result:

[ERROR]   [SofaPython3::SceneLoader] Unable to completely load the scene from file '/Users/fred/Work/sofa/SofaLnRobotics/scenes/demos/Demo_05_simple_data_inverse.py'.
Python exception:
  AttributeError: Unable to find attribute: EdgeSetTopologyContainer
   You possibly wanted to access:
   - The object named 'EdgeSetTopologyModifier' (80% match)