[WIP] examples.tutorial_dynamic_model: Adapt tutorial for new update-function

This is the adapted tutorial for when the update-functions are working properly. This will only work properly, once feature/couchdb_update_commit has been merged with master

aas/examples/tutorial_dynamic_model.py

@@ -148,8 +148,7 @@ submodel = model.Submodel(
 )
 
 # Update the complete process list to have current data
-# TODO in future it will be sufficient to `update()` the submodel, which should propagate the request recursively.
-submodel.get_referable('processes').update()
+submodel.update()
 
 # Write the submodel to a JSON file.
 # See `tutorial_serialization_deserialization_json.py` for more information.