Use systemd instead of daemon version

Puma 5.0 remove daemon support so we need to use systemd instead.

Author: rafaelfranca

Capfile

@@ -8,3 +8,4 @@ require 'capistrano/rvm'
 require 'capistrano/rails'
 require 'capistrano/puma'
 install_plugin Capistrano::Puma
+install_plugin Capistrano::Puma::Systemd

config/deploy/production.rb

@@ -6,6 +6,7 @@
 set :puma_bind, 'unix:/tmp/rails-contributors.sock'
 set :puma_preload_app, false
 set :puma_workers, 1
+set :puma_phased_restart, true
 
 set :rvm_ruby_version, '2.6.5'