.github/workflows/ruby.yml in kramdown-man-0.1.8 vs .github/workflows/ruby.yml in kramdown-man-0.1.9

@@ -1,25 +1,20 @@
 name: CI
 
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: ['**']
+on: [ push, pull_request ]
 
 jobs:
   tests:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
         ruby:
-          - 2.4
-          - 2.5
-          - 2.6
-          - 2.7
           - 3.0
+          - 3.1
+          - 3.2
           - jruby
+          - truffleruby
     name: Ruby ${{ matrix.ruby }}
     steps:
       - uses: actions/checkout@v2
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1