(MAINT) Bump puppet-lint dependency

This commit sets the minium required version of puppet-lint to v3.0.0.

As of this version puppet-lints rubocop config is bundled with the gem.
This means that we can now consume it in plugin projects.

Author: chelnak

puppet-lint-check_unsafe_interpolations.gemspec

@@ -22,5 +22,5 @@ Gem::Specification.new do |spec|
   spec.license       = 'Apache-2.0'
   spec.required_ruby_version = Gem::Requirement.new(">= 2.7".freeze)
 
-  spec.add_dependency 'puppet-lint', '~> 2.0'
+  spec.add_dependency 'puppet-lint', '~> 3.0.0'
 end