Remove Ruby 2.7 from test matrix

Author: jgarber623

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [macos-latest, ubuntu-latest]
-        ruby: ["2.7", "3.0", "3.1", "3.2", "3.3"]
+        ruby: ["3.0", "3.1", "3.2", "3.3"]
     steps:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1