Use RemoteMediaDownloaderClient, not Tesla directly to use global ssl options

lib/federation/activity_stream/converter/media.ex

@@ -9,13 +9,9 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Media do
   alias Mobilizon.Federation.ActivityStream
   alias Mobilizon.Medias
   alias Mobilizon.Medias.Media, as: MediaModel
-
+  alias Mobilizon.Service.HTTP.RemoteMediaDownloaderClient
   alias Mobilizon.Web.Upload
 
-  @http_options [
-    ssl: [{:versions, [:"tlsv1.2"]}]
-  ]
-
   @doc """
   Convert a media struct to an ActivityStream representation.
   """
@@ -65,7 +61,7 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Media do
   defp upload_media(media_url, ""), do: upload_media(media_url, "unknown")
 
   defp upload_media(media_url, name) do
-    case Tesla.get(media_url, opts: @http_options) do
+    case RemoteMediaDownloaderClient.get(media_url) do
       {:ok, %{body: body}} ->
         case Upload.store(%{body: body, name: name}) do
           {:ok, %{url: _url} = uploaded} ->