Do not show URL in boot info when using Puma

Puma has its own configuration file(e.g. `config/puma.rb`).
Can define a port and a URL to bind in the configuration file. Therefore,
on Rails side, can not grasp which URI to bind finally.

Because of that, it may show a URL different from the actually bound
URL, so I think that it is better not to show it.

Fixes #29880

railties/lib/rails/commands/server/server_command.rb

@@ -64,9 +64,9 @@ def setup_dev_caching
       end
 
       def print_boot_information
-        url = "#{options[:SSLEnable] ? 'https' : 'http'}://#{options[:Host]}:#{options[:Port]}"
+        url = "on #{options[:SSLEnable] ? 'https' : 'http'}://#{options[:Host]}:#{options[:Port]}" unless use_puma?
         puts "=> Booting #{ActiveSupport::Inflector.demodulize(server)}"
-        puts "=> Rails #{Rails.version} application starting in #{Rails.env} on #{url}"
+        puts "=> Rails #{Rails.version} application starting in #{Rails.env} #{url}"
         puts "=> Run `rails server -h` for more startup options"
       end
 
@@ -91,6 +91,10 @@ def log_to_stdout
       def restart_command
         "bin/rails server #{ARGV.join(' ')}"
       end
+
+      def use_puma?
+        server.to_s == "Rack::Handler::Puma"
+      end
   end
 
   module Command