fix(Crystal/runcobo): fix class name conflit when upgrade to Crystal 1.15.0 (#8156)

Author: shootingfly

crystal/runcobo/src/server.cr

@@ -1,23 +1,23 @@
 require "runcobo"
 ENV["SKIP_LOG"] = "true"
 
-class Index < BaseAction
+class Home::Index < BaseAction
   get "/"
 
   call do
     render_plain ""
   end
 end
 
-class CreateUser < BaseAction
+class Users::CreateUser < BaseAction
   post "/user"
 
   call do
     render_plain ""
   end
 end
 
-class ShowUser < BaseAction
+class Users::ShowUser < BaseAction
   get "/user/:id"
   url NamedTuple(id: Int32)
 
@@ -32,4 +32,4 @@ System.cpu_count.times do |_|
   end
 end
 
-sleep
+sleep