pin older version of chefdk
pin older version of chefdk

Signed-off-by: Christoph Hartmann <711c73f64afdce07b7e38039a96d2224209e9a6c@lollyrock.com>

hardening-io/chef-nginx-hardening,dev-sec/chef-nginx-hardening,hardening-io/chef-nginx-hardening,dev-sec/chef-nginx-hardening