Bump apps/whitehall from `b965554` to `1dec432`
Bump apps/whitehall from `b965554` to `1dec432`

Bumps [apps/whitehall](https://github.com/alphagov/whitehall) from `b965554` to `1dec432`.
- [Release notes](https://github.com/alphagov/whitehall/releases)
- [Commits](https://github.com/alphagov/whitehall/compare/b9655549d9ff490d7dc61046be2d1ba4b4c3f3ee...1dec432d504b500a8750c11b31313b6fee867090)

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