Add step to notify the team of any Ruby version bumps

Add a step to notify the team of a Ruby version bump, and what to do in that case.

This was discussed today in https://gitlab.slack.com/archives/C011GQM684V/p1678706788927029.

I'm trying to compile the docs site locally but every time I try to run asdf install ruby 3.2.1 , it returns: error: Your local changes to the following files would be overwritten by checkout: .tool-versions. But the thing is I haven't made any changes to .tool-versions anywhere on my branch. Has anyone run into this before?