fix: catch without argument does not suppress

[crishoj]

Occasionally I see unhandled promise rejections during auto-reconnect:

Unhandled promise rejection: Promise { <rejected> } reason: 562 |                 this.activeSubscriptions = {};
563 |                 this.debug(`disconnectFromTarget(): Connection closing failed, connection was forced to close`);
564 |                 if (isReconnecting) {
565 |                     this.emit("disconnect", isReconnecting);
566 |                 }
567 |                 return reject(new client_error_1.default(`disconnect(): Disconnected with errors: ${disconnectError.message}`, err));
                                                       ^
ClientError: disconnect(): Disconnected with errors: unregisterAdsPort(): Timeout - no response in 2000 ms
    trace: [
  "disconnect(): Disconnected with errors: unregisterAdsPort(): Timeout - no response in 2000 ms",
  "unregisterAdsPort(): Timeout - no response in 2000 ms"
],
 adsError: {
  errorCode: undefined,
  errorStr: undefined,
},

Likely because .catch() without argument does not suppress exceptions.

[jisotalo]

Thanks @crishoj, I'll try to check this through during holidays!