Update puppet_metadata to ~> 4.0 and voxpupuli-acceptance to ~> 3.0

Revert "move the hiera file at the right place"

This reverts commit c16ddb8.

Gemfile

@@ -10,9 +10,9 @@ gem 'kafo_module_lint', {"groups"=>["test"]}
 gem 'puppet-lint-spaceship_operator_without_tag-check', '~> 1.0', {"groups"=>["test"]}
 gem 'voxpupuli-test', '~> 7.0', {"groups"=>["test"]}
 gem 'github_changelog_generator', '>= 1.15.0', {"groups"=>["development"]}
-gem 'puppet_metadata', '~> 3.4'
+gem 'puppet_metadata', '~> 4.0'
 gem 'puppet-blacksmith', '>= 6.0.0', {"groups"=>["development"]}
-gem 'voxpupuli-acceptance', '~> 2.0', {"groups"=>["system_tests"]}
+gem 'voxpupuli-acceptance', '~> 3.0', {"groups"=>["system_tests"]}
 gem 'puppetlabs_spec_helper', {"groups"=>["system_tests"]}
 
 # vim:ft=ruby