Build(deps): Bump loofah from 2.8.0 to 2.9.0 (#11737)

Bumps [loofah](https://github.com/flavorjones/loofah) from 2.8.0 to 2.9.0.
- [Release notes](https://github.com/flavorjones/loofah/releases)
- [Changelog](https://github.com/flavorjones/loofah/blob/main/CHANGELOG.md)
- [Commits](https://github.com/flavorjones/loofah/compare/v2.8.0...v2.9.0)

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

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

Gemfile.lock

@@ -178,7 +178,7 @@ GEM
     logstash-logger (0.26.1)
       logstash-event (~> 1.2)
     logster (2.9.4)
-    loofah (2.8.0)
+    loofah (2.9.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lru_redux (1.1.0)