fix(shell): make shell assignment work under new codespaces config
fix(shell): make shell assignment work under new codespaces config

Install was hanging trying to change the shell for the `vscode` user;
pass `sudo` unconditionally to make it work.

wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent