Add a DEB repository for tenv

[samuel-phan]

Is your feature request related to a problem? Please describe. By using a DEB repo, Debian/Ubuntu users can benefit from auto-update like any other package. It's simpler and easier for day-to-day operations.

Describe the solution you'd like Create a PPA repo for tenv, and for every build, add the new version there.

Describe alternatives you've considered N/A.

Additional context N/A.