get an aws security token for STT

lib/utils/install-srf-locals.js

@@ -178,6 +178,7 @@ function installSrfLocals(srf, logger) {
     synthAudio,
     getNuanceAccessToken,
     getIbmAccessToken,
+    getAwsAuthToken
   } = require('@jambonz/speech-utils')({redis_client: client}, logger);
   const {
     writeAlerts,
@@ -231,6 +232,7 @@ function installSrfLocals(srf, logger) {
       getListPosition,
       getNuanceAccessToken,
       getIbmAccessToken,
+      getAwsAuthToken,
       addToSortedSet,
       retrieveFromSortedSet,
       retrieveByPatternSortedSet,