MediaProxyControllerTest: Fix tests

test/pleroma/web/media_proxy/media_proxy_controller_test.exs

@@ -9,9 +9,17 @@ defmodule Pleroma.Web.MediaProxy.MediaProxyControllerTest do
   import Mox
 
   alias Pleroma.ReverseProxy.ClientMock
+  alias Pleroma.UnstubbedConfigMock, as: ConfigMock
   alias Pleroma.Web.MediaProxy
   alias Plug.Conn
 
+  setup do
+    ConfigMock
+    |> stub_with(Pleroma.Test.StaticConfig)
+
+    :ok
+  end
+
   describe "Media Proxy" do
     setup do
       clear_config([:media_proxy, :enabled], true)