Bump redcarpet from 3.5.0 to 3.5.1 (#11925)

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>

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

Gemfile.lock

@@ -573,7 +573,7 @@ GEM
       ffi (~> 1.0)
     recaptcha (5.6.0)
       json
-    redcarpet (3.5.0)
+    redcarpet (3.5.1)
     redis (4.2.5)
     redis-actionpack (5.1.0)
       actionpack (>= 4.0, < 7)