capistrano: only log newrelic deployment in production.

Fix local development deployments getting logged in New Relic.

Capfile

@@ -17,5 +17,3 @@ require 'new_relic/recipes'
 
 # Load custom tasks from `lib/capistrano/tasks` if you have any defined
 Dir.glob('lib/capistrano/tasks/*.rake').each { |r| import r }
-
-after "deploy:updated", "newrelic:notice_deployment"

config/deploy/production.rb

@@ -6,4 +6,6 @@ server "saitou", :roles => %w(web app)
 server "oogaki", :roles => %w(worker)
 
 set :linked_files, fetch(:linked_files, []).push(".env.production")
-set :rbenv_path, "/home/danbooru/.rbenv"
+set :rbenv_path, "/home/danbooru/.rbenv"
+
+after "deploy:finished", "newrelic:notice_deployment"