Update rubocop requirement from ~> 0.55.0 to ~> 0.74.0
Update rubocop requirement from ~> 0.55.0 to ~> 0.74.0

Updates the requirements on [rubocop](https://github.com/rubocop-hq/rubocop) to permit the latest version.
- [Release notes](https://github.com/rubocop-hq/rubocop/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop/compare/v0.55.0...v0.74.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
nhoizey/jekyll-cloudinary,nhoizey/jekyll-cloudinary