feat: allow TeamQuestionnaireStateSubscription for trainees

Closes #226

running_exercise/subscription.py

@@ -186,7 +186,7 @@ class TeamQuestionnaireStateSubscription(channels_graphql_ws.Subscription):
         team_id = graphene.ID(required=True)
 
     @staticmethod
-    @protected(Perms.view_analytics.full_name)
+    @protected(Perms.view_trainee_info.full_name)
     @extra_protected(Check.TEAM_ID)
     def subscribe(root, info, team_id: str):
         get_model(Team, id=int(team_id))