Merge pull request #675 from splitrb/enable-rb-31

Add Ruby 3.1

Author: andrehjr

.github/workflows/ci.yml

@@ -34,8 +34,8 @@ jobs:
           - gemfile: 7.0.gemfile
             ruby: '3.0'
 
-          # - gemfile: 7.0.gemfile
-          #   ruby: '3.1'
+          - gemfile: 7.0.gemfile
+            ruby: '3.1'
 
 
     runs-on: ubuntu-latest

gemfiles/7.0.gemfile

@@ -5,5 +5,6 @@ source "https://rubygems.org"
 gem "appraisal"
 gem "codeclimate-test-reporter"
 gem "rails", "~> 7.0"
+gem "matrix"
 
 gemspec path: "../"