[FEAT] Code-server-rbenv Mod #1074

Is this a new feature request?

• I have searched the existing issues

Name of mod

somewatson/code-server-rbenv

Wanted change

This mod adds rbenv to code-server, to be installed/updated during container start.

I'd like to make a PR to have it included as a mod.

Can we make a new branch called code-server-rbenv so I can open up a PR?

Reason for change

rbenv is a version manager tool for the Ruby programming language on Unix-like systems. It is useful for switching between multiple Ruby versions on the same machine and for ensuring that each project you are working on always runs on the correct Ruby version.

Similar to nvm for Node.js or pyenv for Python, rbenv is useful for developing programs in the Ruby programming language.

Proposed code change

No response