Build rails 7 with ruby 3.2

Author: bogdan

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
             gemfile: gemfiles/rails51_sprockets_3.gemfile
           - ruby: "2.7"
             gemfile: gemfiles/rails52_sprockets_3.gemfile
-          - ruby: "2.7"
+          - ruby: "3.2"
             gemfile: gemfiles/rails70_sprockets_4.gemfile
           - ruby: "3.3"
             gemfile: gemfiles/rails80_sprockets_4.gemfile