Update docker tftp

tools/src/Release.php

@@ -542,7 +542,7 @@ class Release extends Command
         ->image($registry . "fd3/tftp:" . $version)
         ->addEnv_file($host_env_file)
         ->restart($this->_docker_restart_default)
-        ->addPorts(69, 69);
+        ->addPorts(69, '69/udp');
     }
 
     function addRadius(FileFormat2 $composer, $config = array())