Add Rubocop Autoformatter

init.lua

@@ -660,6 +660,7 @@ require('lazy').setup({
         -- You can use a sub-list to tell conform to run *until* a formatter
         -- is found.
         -- javascript = { { "prettierd", "prettier" } },
+        ruby = { 'rubocop' },
       },
     },
   },