Use PleromaJobQueue for scheduling

mix.exs

@@ -140,7 +140,8 @@ defmodule Pleroma.Mixfile do
       {:http_signatures,
        git: "https://git.pleroma.social/pleroma/http_signatures.git",
        ref: "9789401987096ead65646b52b5a2ca6bf52fc531"},
-      {:pleroma_job_queue, "~> 0.2.0"},
+      {:pleroma_job_queue,
+       git: "https://git.pleroma.social/pleroma/pleroma_job_queue.git", ref: "0637ccb1"},
       {:telemetry, "~> 0.3"},
       {:prometheus_ex, "~> 3.0"},
       {:prometheus_plugs, "~> 1.1"},
@@ -148,7 +149,6 @@ defmodule Pleroma.Mixfile do
       {:prometheus_ecto, "~> 1.4"},
       {:recon, github: "ferd/recon", tag: "2.4.0"},
       {:quack, "~> 0.1.1"},
-      {:quantum, "~> 2.3"},
       {:joken, "~> 2.0"},
       {:benchee, "~> 1.0"},
       {:esshd, "~> 0.1.0", runtime: Application.get_env(:esshd, :enabled, false)},