Fix testing ruby versions (#139)

Author: tilfin

.github/workflows/ci.yml

@@ -7,9 +7,9 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: [2.6, 2.7, 3.0, 3.1, head, jruby-head]
+        ruby-version: [3.0, 3.1, 3.2, 3.3, 3.4, jruby-head]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Ruby ${{ matrix.ruby-version }}
         uses: ruby/setup-ruby@v1
         with:
@@ -18,7 +18,7 @@ jobs:
       - name: Run tests
         run: bundle exec rspec
       - name: Code Climate Test Reporter
-        if: matrix.ruby-version == '3.0'
+        if: matrix.ruby-version == '3.4'
         uses: aktions/codeclimate-test-reporter@v1
         with:
           codeclimate-test-reporter-id: ${{ secrets.CC_TEST_REPORTER_ID }}