Add context to error when removing an upload file following actor suspension

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

lib/service/actor_suspension.ex

@@ -279,7 +279,12 @@ defmodule Mobilizon.Service.ActorSuspension do
         {:ok, actor}
 
       {:error, error} ->
-        Logger.error("Error while removing an upload file")
+        Logger.error("Error while removing an upload file",
+          error: inspect(error),
+          actor: Actor.preferred_username_and_domain(actor),
+          file_url: url
+        )
+
         Logger.debug(inspect(error))
 
         {:ok, actor}