Enable passwordless root access

What does this MR do?

Enables our users to run sudo commands without password.

Why was this MR needed?

Some software require root to be installed, such as homebrew casks. We also give root on our Windows shared runners for the same reasons.

What's the best way to test this MR?

scripts/dev-vm --base-image mr-81-base-10.15.img new      

# ssh with address & port, base VM password in 1password
ssh -o Port=8822 gitlab@10.221.188.124

# in the VM run sudo
sudo whoami

What are the relevant issue numbers?

Closes #60 (closed)