chore(deps): bump redcarpet from 3.3.4 to 3.5.1

Bumps [redcarpet](https://github.com/vmg/redcarpet) from 3.3.4 to 3.5.1.
- [Release notes](https://github.com/vmg/redcarpet/releases)
- [Changelog](https://github.com/vmg/redcarpet/blob/master/CHANGELOG.md)
- [Commits](vmg/redcarpet@v3.3.4...v3.5.1)

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

Author: dependabot[bot]

Gemfile.lock

@@ -5,7 +5,7 @@ GEM
       redcarpet (>= 2.2, < 4.0)
       rouge (>= 1.5)
     rake (11.1.2)
-    redcarpet (3.3.4)
+    redcarpet (3.5.1)
     rouge (1.10.1)
     sass (3.4.22)
     scss_lint (0.48.0)