Bump ffaker from 2.20.0 to 2.21.0

Bumps [ffaker](https://github.com/ffaker/ffaker) from 2.20.0 to 2.21.0.
- [Release notes](https://github.com/ffaker/ffaker/releases)
- [Changelog](https://github.com/ffaker/ffaker/blob/main/Changelog.md)
- [Commits](https://github.com/ffaker/ffaker/compare/v2.20.0...v2.21.0)

---
updated-dependencies:
- dependency-name: ffaker
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -291,7 +291,7 @@ GEM
       cliver (~> 0.3)
       concurrent-ruby (~> 1.1)
       websocket-driver (>= 0.6, < 0.8)
-    ffaker (2.20.0)
+    ffaker (2.21.0)
     ffi (1.15.5)
     flipper (0.20.4)
     flipper-active_record (0.20.4)