increae puppetlabs_spec_helper vertsion to address build failure

Author: lynsaywright

Gemfile

@@ -21,7 +21,7 @@ gem 'puppet-lint',                                               '~> 2.4'
 gem 'puppet-strings',                                            '~> 2.6'
 gem 'puppet-syntax',                                             '~> 3.1'
 gem 'puppet',                                                    '~> 7.5'
-gem 'puppetlabs_spec_helper',                                    '~> 4.0'
+gem 'puppetlabs_spec_helper',                                    '~> 5.0'
 gem 'r10k',                                                      '~> 3.8'
 gem 'ra10ke',                                                    '~> 1.0'
 gem 'rspec-puppet',                                              '~> 2.12.0'