fix: Activity message generation for team assignemnt automation (#5846)

app/models/concerns/activity_message_handler.rb

@@ -6,7 +6,7 @@ module ActivityMessageHandler
   def create_activity
     user_name = Current.user.name if Current.user.present?
     status_change_activity(user_name) if saved_change_to_status?
-    create_label_change(label_activity_message_ownner(user_name)) if saved_change_to_label_list?
+    create_label_change(activity_message_ownner(user_name)) if saved_change_to_label_list?
   end
 
   def status_change_activity(user_name)
@@ -84,6 +84,7 @@ def generate_team_name_for_activity
   end
 
   def create_team_change_activity(user_name)
+    user_name = activity_message_ownner(user_name)
     return unless user_name
 
     key = generate_team_change_activity_key
@@ -108,7 +109,7 @@ def create_assignee_change_activity(user_name)
     ::Conversations::ActivityMessageJob.perform_later(self, activity_message_params(content)) if content
   end
 
-  def label_activity_message_ownner(user_name)
+  def activity_message_ownner(user_name)
     user_name = 'Automation System' if !user_name && Current.executed_by.present?
     user_name
   end