Upgrade deps

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

priv/repo/migrations/20200213154309_upgrade_oban_jobs_to_v8.exs

@@ -0,0 +1,6 @@
+defmodule Mobilizon.Storage.Repo.Migrations.UpgradeObanJobsToV8 do
+  use Ecto.Migration
+
+  def up, do: Oban.Migrations.up(version: 8)
+  def down, do: Oban.Migrations.down()
+end