Redirect http -> https when acme is enabled (#942)

omnibus/cookbooks/firezone/templates/redirect.conf.erb

@@ -6,6 +6,8 @@ server {
   <% end -%>
   server_name <%= @server_name %>;
 
+  return 301 https://<%= @server_name %>$request_uri;
+
   # Needed for ACME requests
   location /.well-known/acme-challenge/ {
     alias <%= @acme_www_root %>/.well-known/acme-challenge/;