build(deps-dev): update rouge requirement from ~> 4.0.0 to ~> 4.5.1

Updates the requirements on [rouge](https://github.com/rouge-ruby/rouge) to permit the latest version.
- [Release notes](https://github.com/rouge-ruby/rouge/releases)
- [Changelog](https://github.com/rouge-ruby/rouge/blob/master/CHANGELOG.md)
- [Commits](rouge-ruby/rouge@v4.0.1...v4.5.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile.lock

@@ -188,7 +188,7 @@ GEM
     rbtree (0.4.6)
     regexp_parser (2.6.1)
     rexml (3.2.5)
-    rouge (4.0.1)
+    rouge (4.5.1)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
       rspec-expectations (~> 3.12.0)
@@ -314,7 +314,7 @@ DEPENDENCIES
   nanoc
   nanoc-live
   pry-byebug
-  rouge (~> 4.0.0)
+  rouge (~> 4.5.1)
   rspec-html-matchers (~> 0.9)
   rspec-rails
   rubocop

dsfr-view-components.gemspec

@@ -50,7 +50,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency("htmlbeautifier", "~> 1.4.1")
   spec.add_development_dependency("kramdown", "~> 2.4.0")
   spec.add_development_dependency("nanoc", "~> 4.11")
-  spec.add_development_dependency("rouge", "~> 4.0.0")
+  spec.add_development_dependency("rouge", "~> 4.5.1")
   spec.add_development_dependency("rubypants", "~> 0.7.0")
   spec.add_development_dependency("sass")
   spec.add_development_dependency("sassc", "~> 2.4.0")