Merge pull request #597 from puppetlabs/cat-2056-add_puppet-black_to_templates

(CAT-2056) - add puppet-blacksmith to templates

config_defaults.yml

@@ -557,6 +557,8 @@ Gemfile:
       - gem: 'puppet-strings'
         version: '~> 4.0'
       - gem: 'puppetlabs_spec_helper'
+        version: '~> 8.0'
+      - gem: 'puppet-blacksmith'
         version: '~> 7.0'
     ':system_tests':
       - gem: 'puppet_litmus'