Add 8.0

Author: codergeek121

.github/workflows/ruby.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       matrix:
         ruby-version: ['3.1', '3.2', '3.3']
-        rails-version: ['7.0', '7.1']
+        rails-version: ['7.0', '7.1', '8.0']
         importmap-rails-version: ['2.0', '1.2']
       fail-fast: false