Typo: Send sync endpoints to sync workers, not room workers

roles/custom/matrix-synapse-reverse-proxy-companion/templates/nginx/conf.d/matrix-synapse-reverse-proxy-companion.conf.j2

@@ -67,7 +67,7 @@ map $request_uri $room_name {
 	# Round Robin "upstream" pools for workers
 
 	{{ render_worker_upstream('room_workers_upstream', room_workers, 'hash $room_name consistent;') }}
-	{{ render_worker_upstream('sync_workers_upstream', room_workers, 'hash $mxid_localpart consistent;') }}
+	{{ render_worker_upstream('sync_workers_upstream', sync_workers, 'hash $mxid_localpart consistent;') }}
 	{{ render_worker_upstream('client_reader_workers_upstream', client_reader_workers, 'least_conn;') }}
 	{{ render_worker_upstream('federation_reader_workers_upstream', federation_reader_workers, 'hash $http_x_forwarded_for;') }}