* [ssh-gateway] fix missing output when running simple command
* upgrade golang-crypto library
* only close when all of stdout stderr request stream finish
* upgrade golang-crypto
VS Code Remote SSH will reestablish a ssh connection even if window is not uesd.
It will retrigger heartbeat over and over in SSH Gateway.
SSH Gateway should only triggert heartbeat if pty sessions is present.
Co-authored-by: Pudong <tianshi8650@gmail.com>