Update rubocop requirement from 1.57.2 to 1.58.0

Updates the requirements on [rubocop](https://github.com/rubocop/rubocop) to permit the latest version.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v1.57.2...v1.58.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile

@@ -5,7 +5,7 @@ gem "concurrent-ruby", "~> 1.1"
 gem "minitest", "~> 5.11"
 gem "minitest-rg"
 gem "rake", "~> 13.0"
-gem "rubocop", "1.57.2"
+gem "rubocop", "1.58.0"
 gem "rubocop-md", "1.2.1"
 gem "rubocop-minitest", "0.33.0"
 gem "rubocop-packaging", "0.5.2"