bugfix: azure stt - if we get no speech detected, listen again

lib/utils/ws-requestor.js

@@ -105,6 +105,7 @@ class WsRequestor extends BaseRequestor {
       /* save the message info for reply */
       const startAt = process.hrtime();
       this.messagesInFlight.set(msgid, {
+        timer,
         success: (response) => {
           clearTimeout(timer);
           const rtt = this._roundTrip(startAt);
@@ -135,6 +136,8 @@ class WsRequestor extends BaseRequestor {
       }
 
       for (const [msgid, obj] of this.messagesInFlight) {
+        const {timer} = obj;
+        clearTimeout(timer);
         obj.failure(`abandoning msgid ${msgid} since we have closed the socket`);
       }
       this.messagesInFlight.clear();