Move sending account Delete to anyone but the account's followers to the pull̀ queue (mastodon#10016)

Author: ClearlyClaire

app/services/suspend_account_service.rb

@@ -102,6 +102,10 @@ def distribute_delete_actor!
     ActivityPub::DeliveryWorker.push_bulk(delivery_inboxes) do |inbox_url|
       [delete_actor_json, @account.id, inbox_url]
     end
+
+    ActivityPub::LowPriorityDeliveryWorker.push_bulk(low_priority_delivery_inboxes) do |inbox_url|
+      [delete_actor_json, @account.id, inbox_url]
+    end
   end
 
   def delete_actor_json
@@ -117,7 +121,11 @@ def delete_actor_json
   end
 
   def delivery_inboxes
-    Account.inboxes + Relay.enabled.pluck(:inbox_url)
+    @delivery_inboxes ||= @account.followers.inboxes + Relay.enabled.pluck(:inbox_url)
+  end
+
+  def low_priority_delivery_inboxes
+    Account.inboxes - delivery_inboxes
   end
 
   def associations_for_destruction

app/workers/activitypub/low_priority_delivery_worker.rb

@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+class ActivityPub::LowPriorityDeliveryWorker < ActivityPub::DeliveryWorker
+  sidekiq_options queue: 'pull', retry: 8, dead: false
+end