Insert replacement jobs in the new format if any remain undelivered

The old jobs remain and will fail gracefully

priv/repo/migrations/20240729163838_publisher_job_change.exs

@@ -0,0 +1,27 @@
+defmodule Pleroma.Repo.Migrations.PublisherJobChange do
+  use Ecto.Migration
+
+  alias Pleroma.Activity
+  import Ecto.Query
+
+  def up do
+    query =
+      from(j in Oban.Job,
+        where: j.worker == "Pleroma.Workers.PublisherWorker",
+        where: j.state in ["available", "retryable"]
+      )
+
+    jobs =
+      Oban |> Oban.config() |> Oban.Repo.all(query)
+
+    Enum.each(jobs, fn job ->
+      args = job.args
+      activity = Activity.get_by_ap_id(args["id"])
+
+      updated_args = Map.put(args, "activity_id", activity.id)
+
+      Pleroma.Workers.PublisherWorker.new(updated_args)
+      |> Oban.insert()
+    end)
+  end
+end