Update rubocop-govuk requirement from = 4.6.0 to = 4.7.0
Update rubocop-govuk requirement from = 4.6.0 to = 4.7.0

Updates the requirements on [rubocop-govuk](https://github.com/alphagov/rubocop-govuk) to permit the latest version.
- [Release notes](https://github.com/alphagov/rubocop-govuk/releases)
- [Changelog](https://github.com/alphagov/rubocop-govuk/blob/main/CHANGELOG.md)
- [Commits](https://github.com/alphagov/rubocop-govuk/compare/v4.6.0...v4.7.0)

---
updated-dependencies:
- dependency-name: rubocop-govuk
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
alphagov/govspeak,alphagov/govspeak