Determine the Ruby versions for your testing matrix based on the gemspec.

Maintaining your CI is tedious and your gem can already specify the compatible Ruby versions using required_ruby_version. This action reads your gemspec and provides an output of compatible Ruby versions.

A static list of compatible versions is maintained. This is a subset of setup-ruby's supported versions.

• 3.3
• 3.2
• 3.1
• 3.0
• 2.7
• 2.6
• 2.5
• 2.4