ui-dev: bump loofah in /server/src/main/webapp/WEB-INF/rails

Bumps [loofah](https://github.com/flavorjones/loofah) from 2.21.4 to 2.22.0.
- [Release notes](https://github.com/flavorjones/loofah/releases)
- [Changelog](https://github.com/flavorjones/loofah/blob/main/CHANGELOG.md)
- [Commits](flavorjones/loofah@v2.21.4...v2.22.0)

---
updated-dependencies:
- dependency-name: loofah
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

server/src/main/webapp/WEB-INF/rails/Gemfile.lock

@@ -93,7 +93,7 @@ GEM
       concurrent-ruby (~> 1.0)
     js-routes (1.4.14)
       railties (>= 4)
-    loofah (2.21.4)
+    loofah (2.22.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
     mail (2.8.1)