Add ability to set a default post expiry (#321)

[akkoma] / priv / repo / migrations / 20190730055101_add_oban_jobs_table.exs

defmodule Pleroma.Repo.Migrations.AddObanJobsTable do
  use Ecto.Migration

  def up do
    Oban.Migrations.up(version: 2)
  end

  defdelegate down, to: Oban.Migrations
end