Bump redcarpet from 3.5.0 to 3.5.1 (#2425)

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)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -330,7 +330,7 @@ GEM
       ffi (~> 1.0)
     recaptcha (5.5.0)
       json
-    redcarpet (3.5.0)
+    redcarpet (3.5.1)
     redis (4.1.4)
     remote_syslog_logger (1.0.4)
       syslog_protocol