First of all, open the vscode editor and check the commit version from "About Visual Studio Code" tab, it should be something like 2b35e1e6d88f1ce073683991d1eff5284a32690f.
Save the bellow script and pass it the commit code to run will do the job.
#!/bin/bash
code_server=~/vscode-server-linux-x64.tar.gz
curl -L https://update.code.visualstudio.com/commit:${@}/server-linux-x64/stable > $code_server