Bump rouge from 3.21.0 to 3.23.0 (#1311)

Bumps [rouge](https://github.com/rouge-ruby/rouge) from 3.21.0 to 3.23.0.
- [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/v3.21.0...v3.23.0)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Gemfile.lock

@@ -95,7 +95,7 @@ GEM
       ffi (~> 1.0)
     redcarpet (3.5.0)
     rexml (3.2.4)
-    rouge (3.21.0)
+    rouge (3.23.0)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)