packaging: test erb changes for modern Ruby

Test for OpenVoxProject/packaging#9

Author: bastelfreak

Gemfile

@@ -13,7 +13,8 @@ end
 # The public_suffix gem used in the dependencies for the packaging gem no longer supports Ruby 2.5
 # and bundler is not smart enough to realize that an older version would work in the mix.
 gem 'public_suffix', '= 4.0.7'
-gem 'packaging', *location_for(ENV['PACKAGING_LOCATION'] || '~> 0.99')
+#gem 'packaging', *location_for(ENV['PACKAGING_LOCATION'] || '~> 0.99')
+gem 'packaging', github: 'OpenVoxProject/packaging', branch: 'erb'
 gem 'rake', :group => [:development, :test]
 
 group :test do