Merge pull request #57 from fluent-plugins-nursery/update-ci

CI: Add Ruby 3.2

Author: daipom

.github/workflows/test.yaml

@@ -8,14 +8,14 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ '2.7', '3.1' ]
+        ruby: [ '2.7', '3.1', '3.2' ]
         os:
           - windows-latest
           - ubuntu-latest
           - macos-latest
     name: Test on ${{ matrix.os }} with Ruby ${{ matrix.ruby }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with: