Try to fix retrieval of the configuration schemas from the actors.

commands/upgrade/__init__.py

@@ -94,7 +94,8 @@ def upgrade(args, breadcrumbs):
 
     # Read the Actor Config and validate it against the schemas saved in the
     # configuration.
-    actor_config_schemas = repositories.get_config_schemas()
+    actor_config_schemas = tuple(actor.config_schemas for actor in repositories.actors)
+    actor_config_schemas = actor_config.normalize_schemas(actor_config_schemas)
     actor_config_path = cfg.get('actor_config', 'path')
     # Note: actor_config.load() stores the loaded actor config into a global
     # variable which can then be accessed by functions in that file.  Is this