[Security] 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. **This update includes a security fix.**
- [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-preview[bot] <support@dependabot.com>

Gemfile

@@ -46,7 +46,7 @@ gem "pg", "~> 1.0.0"
 gem "pg_search", "~> 2.3.5"
 gem "puma", "~> 4.3.6"
 gem "recipient_interceptor", "~> 0.2.0"
-gem "redcarpet", "~> 3.5.0"
+gem "redcarpet", "~> 3.5.1"
 gem "responders", "~> 3.0.1"
 gem "rinku", "~> 2.0.6", require: "rails_rinku"
 gem "rollbar", "~> 3.0.1"

Gemfile.lock

@@ -497,7 +497,7 @@ GEM
       ffi (~> 1.0)
     recipient_interceptor (0.2.0)
       mail
-    redcarpet (3.5.0)
+    redcarpet (3.5.1)
     referer-parser (0.3.0)
     regexp_parser (1.8.0)
     request_store (1.5.0)
@@ -748,7 +748,7 @@ DEPENDENCIES
   rails-assets-leaflet!
   rails-assets-markdown-it (~> 9.0.1)!
   recipient_interceptor (~> 0.2.0)
-  redcarpet (~> 3.5.0)
+  redcarpet (~> 3.5.1)
   responders (~> 3.0.1)
   rinku (~> 2.0.6)
   rollbar (~> 3.0.1)