Bump apps/whitehall from `22c594c` to `3c00cb1`
Bump apps/whitehall from `22c594c` to `3c00cb1`

Bumps [apps/whitehall](https://github.com/alphagov/whitehall) from `22c594c` to `3c00cb1`.
- [Release notes](https://github.com/alphagov/whitehall/releases)
- [Commits](https://github.com/alphagov/whitehall/compare/22c594cbd3af63ab4e831aa488a967757d55e41c...3c00cb123019e7fb6e907c4c317ab77cabb670c8)

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