Add Ruby 3.2 to matrix

Author: jhawthorn

.github/workflows/test.yml

@@ -14,9 +14,10 @@ jobs:
     strategy:
       matrix:
         ruby:
-          - '2.7.0'
-          - '3.0.0'
-          - '3.1.0'
+          - '2.7'
+          - '3.0'
+          - '3.1'
+          - '3.2'
 
     steps:
     - uses: actions/checkout@v2