Deploy Mastodon from now on

The mastodon role now always deploys (deploy=true), so a plain converge rebuilds and restarts on new production-4.7 commits.

roles/mastodon.rb

@@ -1,8 +1,7 @@
 name "mastodon"
 
 default_attributes 'kosmos-mastodon' => {
-  'deploy' => false,
-  'build' => false
+  'deploy' => true
 }
 
 run_list %w(