Bump redcarpet from 3.5.0 to 3.5.1

Bumps [redcarpet](https://github.com/vmg/redcarpet) from 3.5.0 to 3.5.1.
- [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/v3.5.0...v3.5.1)

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

Gemfile.lock

@@ -487,7 +487,7 @@ GEM
       link_header (~> 0.0, >= 0.0.8)
     rdf-normalize (0.4.0)
       rdf (~> 3.1)
-    redcarpet (3.5.0)
+    redcarpet (3.5.1)
     redis (4.2.5)
     redis-actionpack (5.2.0)
       actionpack (>= 5, < 7)
@@ -785,7 +785,7 @@ DEPENDENCIES
   rails-i18n (~> 5.1)
   rails-settings-cached (~> 0.6)
   rdf-normalize (~> 0.4)
-  redcarpet (~> 3.4)
+  redcarpet (~> 3.5)
   redis (~> 4.2)
   redis-namespace (~> 1.8)
   redis-rails (~> 5.0)