ci.yml in govuk_personalisation-0.14.0

- old
+ new

@@ -5,10 +5,10 @@
   test_matrix:
     strategy:
       fail-fast: false
       matrix:
         # Due to https://github.com/actions/runner/issues/849, we have to use quotes for '3.0'
-        ruby: [2.7, '3.0', 3.1, 3.2]
+        ruby: ['3.0', 3.1, 3.2]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
       - uses: ruby/setup-ruby@v1
         with: