[Mobilizon] Maybe fix mail

pica-mobilizon/app/prod.secret.exs

@@ -48,5 +48,5 @@ config :mobilizon, Mobilizon.Web.Email.Mailer,
   retries: 1,
   # can be `true`
   no_mx_lookups: false,
-  # can be `:always`. If your smtp relay requires authentication set it to `:always`.
-  auth: :if_available
+  # can be `:if_available`. If your smtp relay requires authentication set it to `:always`.
+  auth: :always