Update test environments

.github/workflows/test.yml

@@ -6,18 +6,16 @@ jobs:
   test_alpine:
     name: Ruby ${{ matrix.ruby_version }}
     runs-on: ubuntu-latest
-    container: ruby:${{ matrix.ruby_version }}-alpine
     strategy:
       fail-fast: false
       matrix:
-        ruby_version: [2.3, 2.4, 2.5, 2.6, 2.7, 3.0]
+        ruby_version: [2.3, 2.4, 2.5, 2.6, 2.7, 3.0, 3.1, 3.2, 3.3]
     steps:
-      - name: Check out repository code
-        uses: actions/checkout@v2
-      - name: Install dependencies
-        run: |
-          apk add --no-cache build-base git less
-          bundle install
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby_version }}
+          bundler-cache: true
       - name: Test on RACK_ENV=development
         run: bundle exec rake test
         env: