Update dependency voxpupuli-test to v12

Author: renovate[bot]

Gemfile

@@ -4,7 +4,7 @@
 source ENV['GEM_SOURCE'] || 'https://rubygems.org'
 
 group :test do
-  gem 'voxpupuli-test', '~> 9.0',               :require => false
+  gem 'voxpupuli-test', '~> 12.0',               :require => false
   gem 'coveralls',                              :require => false
   gem 'simplecov-console',                      :require => false
   gem 'puppet_metadata', '~> 5.0',              :require => false