.github/workflows/ci.yml in iron_bank-5.1.1 vs .github/workflows/ci.yml in iron_bank-5.2.0

@@ -16,9 +16,10 @@
       matrix:
         ruby:
           - 2.5
           - 2.6
           - 2.7
+          - 3.0
 
     runs-on: ubuntu-latest
 
     steps:
       - uses: zendesk/checkout@v2