Fix older migrations not working due to new default scope (mastodon#11983)

Fix mastodon#11952, regression from mastodon#11623

Author: Gargron

db/migrate/20161202132159_add_in_reply_to_account_id_to_statuses.rb

@@ -3,7 +3,7 @@ def up
     add_column :statuses, :in_reply_to_account_id, :integer, null: true, default: nil
 
     ActiveRecord::Base.transaction do
-      Status.where.not(in_reply_to_id: nil).includes(:thread).find_each do |status|
+      Status.unscoped.where.not(in_reply_to_id: nil).includes(:thread).find_each do |status|
         next if status.thread.nil?
 
         status.in_reply_to_account_id = status.thread.account_id

db/migrate/20170209184350_add_reply_to_statuses.rb

@@ -1,7 +1,7 @@
 class AddReplyToStatuses < ActiveRecord::Migration[5.0]
   def up
     add_column :statuses, :reply, :boolean, nil: false, default: false
-    Status.update_all('reply = (in_reply_to_id IS NOT NULL)')
+    Status.unscoped.update_all('reply = (in_reply_to_id IS NOT NULL)')
   end
 
   def down