Bump apps/fr-staffapp from `d9a5354` to `dff28ba`
Bump apps/fr-staffapp from `d9a5354` to `dff28ba`

Bumps [apps/fr-staffapp](https://github.com/ministryofjustice/fr-staffapp) from `d9a5354` to `dff28ba`.
- [Release notes](https://github.com/ministryofjustice/fr-staffapp/releases)
- [Commits](https://github.com/ministryofjustice/fr-staffapp/compare/d9a5354c6cdf7525ca5dcfb6b9eb50237fb15ee1...dff28ba2a5d7dd0de75d63c8e402d7ad549d616b)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
eliotsykes/real-world-rails