[deploy] Bump rouge from 3.17.0 to 3.18.0 (#7320)

Bumps [rouge](https://github.com/rouge-ruby/rouge) from 3.17.0 to 3.18.0.
- [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/v3.17.0...v3.18.0)

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

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

Gemfile

@@ -83,7 +83,7 @@ gem "redis", "~> 4.1.3" # Redis ruby client
 gem "redis-rails", "~> 5.0.2" # Redis for Ruby on Rails
 gem "reverse_markdown", "~> 2.0" # Map simple html back into markdown
 gem "rolify", "~> 5.2" # Very simple Roles library
-gem "rouge", "~> 3.16" # A pure-ruby code highlighter
+gem "rouge", "~> 3.18" # A pure-ruby code highlighter
 gem "rubyzip", "~> 2.3" # Rubyzip is a ruby library for reading and writing zip files
 gem "s3_direct_upload", "~> 0.1" # Direct Upload to Amazon S3
 gem "sass-rails", "~> 6.0" # Sass adapter for the Rails asset pipeline

Gemfile.lock

@@ -631,7 +631,7 @@ GEM
       nokogiri
     rexml (3.2.4)
     rolify (5.2.0)
-    rouge (3.17.0)
+    rouge (3.18.0)
     rspec (3.9.0)
       rspec-core (~> 3.9.0)
       rspec-expectations (~> 3.9.0)
@@ -942,7 +942,7 @@ DEPENDENCIES
   redis-rails (~> 5.0.2)
   reverse_markdown (~> 2.0)
   rolify (~> 5.2)
-  rouge (~> 3.16)
+  rouge (~> 3.18)
   rspec-rails (~> 4.0)
   rspec-retry (~> 0.6)
   rubocop (~> 0.82)