ci: puppet-lint auto-exclude seems to work now

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>

Rakefile

@@ -3,7 +3,7 @@ require 'puppet-lint/tasks/puppet-lint'
 PuppetLint.configuration.send('disable_80chars')
 PuppetLint.configuration.send('disable_140chars')
 PuppetLint.configuration.relative = true
-PuppetLint.configuration.ignore_paths = ["spec/**/*.pp", "pkg/**/*.pp"]
+PuppetLint.configuration.exclude_paths = []
 
 desc 'Validate manifests, templates, and ruby files'
 task :validate do