Add worker to refresh cover

lib/music_library/worker/refresh_cover.ex

@@ -0,0 +1,10 @@
+defmodule MusicLibrary.Worker.RefreshCover do
+  use Oban.Worker, queue: :default
+
+  @impl Oban.Worker
+  def perform(%Oban.Job{args: %{"id" => record_id}}) do
+    record = MusicLibrary.Records.get_record!(record_id)
+    {:ok, _} = MusicLibrary.Records.refresh_cover(record)
+    :ok
+  end
+end