Manage the permissions on /etc/chef, too
Manage the permissions on /etc/chef, too

We're managing the mode of client.rb and trusted_certs, but we don't
manage the permissions on /etc/chef too. We should manage that. This
also fixes using this cookbook in test kitchen which uses /tmp/kitchen
instead of /etc/chef.

chef-cookbooks/delivery_build,chef-cookbooks/delivery_build,chef-cookbooks/delivery_build