Switch the reclaimer to GenServer.start so it is not linked

lib/pleroma/gun/connection_pool/reclaimer.ex

@@ -9,7 +9,7 @@ defp registry, do: Pleroma.Gun.ConnectionPool
 
   def start_monitor do
     pid =
-      case GenServer.start_link(__MODULE__, [], name: {:via, Registry, {registry(), "reclaimer"}}) do
+      case GenServer.start(__MODULE__, [], name: {:via, Registry, {registry(), "reclaimer"}}) do
         {:ok, pid} ->
           pid
 

lib/pleroma/gun/connection_pool/worker_supervisor.ex

@@ -37,7 +37,7 @@ def start_worker(opts, true) do
   def start_worker(opts, false) do
     case DynamicSupervisor.start_child(__MODULE__, {Worker, opts}) do
       {:error, :max_children} ->
-        spawn(fn -> free_pool() end)
+        free_pool()
         start_worker(opts, true)
 
       res ->