ci test: add jobs with Ruby 3.1 and 3.2

Author: kou

.github/workflows/test.yml

@@ -10,6 +10,12 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - name: "Ruby 3.2 & Rails 7"
+            ruby-version: "3.2"
+            rails-version: "7"
+          - name: "Ruby 3.1 & Rails 7"
+            ruby-version: "3.1"
+            rails-version: "7"
           - name: "Ruby 3.0 & Rails 7"
             ruby-version: "3.0"
             rails-version: "7"