Update Ruby Matrix

Author: robertomiranda

.github/workflows/ci.yml

@@ -8,12 +8,11 @@ jobs:
       matrix:
         ruby:
           - 'head'
+          - '3.2'
           - '3.1'
           - '3.0'
-          - '2.7'
     continue-on-error: ${{ matrix.ruby == 'head' }}
     name: Ruby ${{ matrix.ruby }}
-  
     steps:
       - uses: actions/checkout@v2
       - uses: ruby/setup-ruby@v1