Disable the deprecation warnings as errors for puppet-syntax

Recently puppet4 started deprecating ruby 2.0 with the following
commit: e9eda7ed56

One way to work-around this (in the absence of a more recent ruby
version) is to not treat this deprecation warnings as fatal when
doing the puppet syntax check

Closes-Bug: #1660943

Change-Id: I3d7d9c05016920b21d383cbf1d24a1a862e1c19a
(cherry picked from commit 4194764359)

Gemfile

@@ -1,30 +1,10 @@
 source ENV['GEM_SOURCE'] || "https://rubygems.org"
 
-group :development, :test do
-  gem 'puppetlabs_spec_helper',               :require => 'false'
-  gem 'rspec-puppet', '~> 2.2.0',             :require => 'false'
-  gem 'metadata-json-lint',                   :require => 'false'
-  gem 'puppet-lint-param-docs',               :require => 'false'
-  gem 'puppet-lint-absolute_classname-check', :require => 'false'
-  gem 'puppet-lint-absolute_template_path',   :require => 'false'
-  gem 'puppet-lint-trailing_newline-check',   :require => 'false'
-  gem 'puppet-lint-unquoted_string-check',    :require => 'false'
-  gem 'puppet-lint-leading_zero-check',       :require => 'false'
-  gem 'puppet-lint-variable_contains_upcase', :require => 'false'
-  gem 'puppet-lint-numericvariable',          :require => 'false'
-  gem 'json',                                 :require => 'false'
-  # NOTE(aschultz): We need to pin to beaker < 3 because beaker 3.1.0
-  # requires ruby 2.2.5 and 3.0.0 has a bad serverspec dependency
-  gem 'beaker', '< 3.0.0',                    :require => 'false'
-  # adding 'psych' explicitly
-  # https://github.com/bundler/bundler/issues/2068
-  # TODO: drop it in a future release of 'bundle'.
-  gem 'psych',                                :require => 'false'
-end
-
-group :system_tests do
-  gem 'beaker-rspec',                 :require => 'false'
-  gem 'beaker-puppet_install_helper', :require => 'false'
+group :development, :test, :system_tests do
+  gem 'puppet-openstack_spec_helper',
+      :git     => 'https://git.openstack.org/openstack/puppet-openstack_spec_helper',
+      :branch  => 'stable/newton',
+      :require => false
 end
 
 if facterversion = ENV['FACTER_GEM_VERSION']

Rakefile

@@ -3,4 +3,4 @@ require 'puppet-lint/tasks/puppet-lint'
 
 PuppetLint.configuration.fail_on_warnings = true
 PuppetLint.configuration.send('disable_80chars')
-
+PuppetSyntax.fail_on_deprecation_notices = false