chore(deps): update dependency kitchen-inspec to v3 (#428)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Gemfile

@@ -3,7 +3,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :development do
-  gem 'kitchen-inspec', '~> 2.0'
+  gem 'kitchen-inspec', '~> 3.0'
   gem 'train', '>= 2.1', '< 4.0' # validate 4.x when it's released
 end