Bump redcarpet from 3.4.0 to 3.5.0 (#1260)

Bumps [redcarpet](https://github.com/vmg/redcarpet) from 3.4.0 to 3.5.0.
- [Release notes](https://github.com/vmg/redcarpet/releases)
- [Changelog](https://github.com/vmg/redcarpet/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vmg/redcarpet/compare/v3.4.0...v3.5.0)

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

Gemfile.lock

@@ -27,7 +27,7 @@ GEM
     rack (2.0.8)
     rainbow (3.0.0)
     rake (13.0.1)
-    redcarpet (3.4.0)
+    redcarpet (3.5.0)
     rspec (3.9.0)
       rspec-core (~> 3.9.0)
       rspec-expectations (~> 3.9.0)