Update puppetlabs_spec_helper requirement from ~> 3.0 to ~> 4.0
Update puppetlabs_spec_helper requirement from ~> 3.0 to ~> 4.0

Updates the requirements on [puppetlabs_spec_helper](https://github.com/puppetlabs/puppetlabs_spec_helper) to permit the latest version.
- [Release notes](https://github.com/puppetlabs/puppetlabs_spec_helper/releases)
- [Changelog](https://github.com/puppetlabs/puppetlabs_spec_helper/blob/main/CHANGELOG.md)
- [Commits](https://github.com/puppetlabs/puppetlabs_spec_helper/compare/v3.0.0...v4.0.0)

---
updated-dependencies:
- dependency-name: puppetlabs_spec_helper
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
tohuwabohu/puppet-duplicity,tohuwabohu/puppet-duplicity