Prevent test crash if it cannot successfully remove the console Logger backend

lib/mix/pleroma.ex

@@ -26,7 +26,11 @@ defmodule Mix.Pleroma do
     Application.put_env(:phoenix, :serve_endpoints, false, persistent: true)
 
     unless System.get_env("DEBUG") do
+      try do
         Logger.remove_backend(:console)
+      catch
+        :exit, _ -> :ok
+      end
     end
 
     adapter = Application.get_env(:tesla, :adapter)