DEV: Delete tmp table from migration for invites (#19431)

Follow up a414520742

db/post_migrate/20221212234948_drop_topic_allowed_users_backup_nov_2022.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+class DropTopicAllowedUsersBackupNov2022 < ActiveRecord::Migration[7.0]
+  def up
+    # Follow-up to RemoveInvalidTopicAllowedUsersFromInvites
+    DB.exec("DROP TABLE IF EXISTS topic_allowed_users_backup_nov_2022")
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end