Bump rouge from 4.1.3 to 4.2.0

Bumps [rouge](https://github.com/rouge-ruby/rouge) from 4.1.3 to 4.2.0.
- [Release notes](https://github.com/rouge-ruby/rouge/releases)
- [Changelog](https://github.com/rouge-ruby/rouge/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rouge-ruby/rouge/compare/v4.1.3...v4.2.0)

---
updated-dependencies:
- dependency-name: rouge
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -223,7 +223,7 @@ GEM
       ffi (~> 1.0)
     regexp_parser (2.8.2)
     rexml (3.2.6)
-    rouge (4.1.3)
+    rouge (4.2.0)
     rubocop (1.57.2)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)