Drop legacy Ruby and Rails

Author: tricknotes

.github/workflows/tests.yml

@@ -13,8 +13,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["3.1", "3.2", "3.3"]
-        rails: ["6.1", "7.0", "7.1", "7.2"]
+        ruby: ["3.2", "3.3"]
+        rails: ["7.0", "7.1", "7.2"]
         include:
           - ruby: "3.3"
             rails: "8.0"