Replace HashWithIndifferentAccess, it is now deprecated

app/workers/deferred_dispatch.rb

@@ -9,7 +9,7 @@ module Workers
     def perform(user_id, object_class_name, object_id, opts)
       user = User.find(user_id)
       object = object_class_name.constantize.find(object_id)
-      opts = HashWithIndifferentAccess.new(opts)
+      opts = ActiveSupport::HashWithIndifferentAccess.new(opts)
 
       Diaspora::Federation::Dispatcher.build(user, object, opts).dispatch
     rescue ActiveRecord::RecordNotFound # The target got deleted before the job was run

app/workers/deferred_retraction.rb

@@ -10,7 +10,7 @@ module Workers
       user = User.find(user_id)
       subscribers = Person.where(id: recipient_ids)
       object = retraction_class.constantize.new(retraction_data.deep_symbolize_keys, subscribers)
-      opts = HashWithIndifferentAccess.new(opts)
+      opts = ActiveSupport::HashWithIndifferentAccess.new(opts)
 
       Diaspora::Federation::Dispatcher.build(user, object, opts).dispatch
     end

app/workers/delete_post_from_service.rb

@@ -8,7 +8,7 @@ module Workers
 
     def perform(service_id, opts)
       service = Service.find_by_id(service_id)
-      opts = HashWithIndifferentAccess.new(opts)
+      opts = ActiveSupport::HashWithIndifferentAccess.new(opts)
       service.delete_from_service(opts)
     end
   end