Update puppet_metadata requirement from >= 0.3.0, < 4 to >= 0.3.0, < 5

Updates the requirements on [puppet_metadata](https://github.com/voxpupuli/puppet_metadata) to permit the latest version.
- [Changelog](https://github.com/voxpupuli/puppet_metadata/blob/master/CHANGELOG.md)
- [Commits](voxpupuli/puppet_metadata@0.3.0...2.1.1)

---
updated-dependencies:
- dependency-name: puppet_metadata
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

metadata_json_deps.gemspec

@@ -18,7 +18,7 @@ Gem::Specification.new do |s|
   s.required_ruby_version = Gem::Requirement.new('>= 2.4.0')
 
   s.add_runtime_dependency 'puppet_forge', '>= 2.2', '< 6'
-  s.add_runtime_dependency 'puppet_metadata', '>= 0.3.0', '< 4'
+  s.add_runtime_dependency 'puppet_metadata', '>= 0.3.0', '< 5'
 
   s.add_development_dependency 'rspec', '~> 3.0'
   s.add_development_dependency 'rake', '~> 13.0'