Fix: Campaign triggers first_response reporting event (#4607)

* Fix: Campaign triggers first_response reporting event

* fix spec failure

db/migrate/20220506163839_add_additional_attributes_to_message.rb

@@ -0,0 +1,14 @@
+class AddAdditionalAttributesToMessage < ActiveRecord::Migration[6.1]
+  disable_ddl_transaction!
+
+  def up
+    add_column :messages, :additional_attributes, :jsonb, default: {}
+    add_index :messages, "((additional_attributes->'campaign_id'))", name: 'index_messages_on_additional_attributes_campaign_id', using: 'gin',
+                                                                     algorithm: :concurrently
+  end
+
+  def down
+    remove_index :messages, name: 'index_messages_on_additional_attributes_campaign_id'
+    remove_column :messages, :additional_attributes
+  end
+end