update to latest drachtio-srf and drachtio-fsmrf

lib/http-routes/api/create-call.js

@@ -136,7 +136,7 @@ router.post('/', async(req, res) => {
     }
     else if (!app.notifier) {
       logger.debug('creating null call status hook');
-      app.notifier = {request: () => {}};
+      app.notifier = {request: () => {}, close: () => {}};
     }
 
     /* now launch the outdial */