Upgrade Oban to v2.20

priv/background_repo/migrations/20250814153051_upgrade_oban_jobs_to_v13.exs

@@ -0,0 +1,7 @@
+defmodule MusicLibrary.BackgroundRepo.Migrations.UpgradeObanJobsToV13 do
+  use Ecto.Migration
+
+  def up, do: Oban.Migrations.up(version: 13)
+
+  def down, do: Oban.Migrations.down(version: 13)
+end