Adds Ruby 3.2 to the CI matrix

Author: petergoldstein

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: ["2.7", "3.0", "3.1"]
+        ruby: ["2.7", "3.0", "3.1", "3.2"]
     steps:
       - uses: actions/checkout@v3
       - run: rm Gemfile.lock