.github/workflows/push-cibuild.yml in github-pages-health-check-1.17.7 vs .github/workflows/push-cibuild.yml in github-pages-health-check-1.17.8

@@ -8,9 +8,10 @@
       matrix:
         ruby:
           - 2.5
           - 2.6
           - 2.7
+          - 3.0
     steps:
     - uses: actions/checkout@master
     - name: script/cibuild-docker
       run: script/cibuild-docker
       env: