[REQUEST] Support compatibility for Ruby versions

[etagwerker]

Description

Just like this gem supports this:

# Show gems that don't work with Rails 5.2.0
bundle_report compatibility --rails-version=5.2.0

It would be nice to support:

# Show gems that don't work with Rails 5.2.0
bundle_report compatibility --ruby-version=3.1.0

Possible Implementation

The code would use every gemspec's required_ruby_version attribute: https://github.com/fastruby/skunk/blob/main/skunk.gemspec#L17C8-L17C29

Resources:

Unfortunately, the required_ruby_version is not a required attribute in a gemspec, so the implementation would need to take that into account. More here: https://guides.rubygems.org/specification-reference/#required_ruby_version

I will abide by the code of conduct

[JuanVqz]

This seems duplicated #17