language: ruby
before_install:
  - gem install bundler
script: 'bundle exec rake'
rvm:
  - 2.6.5
  - 2.7.2

language: ruby
before_install:
  - gem install bundler
script: 'bundle exec rake'
rvm:
  - 2.6.5
  - 2.7.2
  - 3.0.0

Add Ruby 3.0.0 to test matrix
Add Ruby 3.0.0 to test matrix

Why not give it a try?
