Bump apps/whitehall from `68cfaa8` to `26b38cb`
Bump apps/whitehall from `68cfaa8` to `26b38cb`

Bumps [apps/whitehall](https://github.com/alphagov/whitehall) from `68cfaa8` to `26b38cb`.
- [Release notes](https://github.com/alphagov/whitehall/releases)
- [Commits](https://github.com/alphagov/whitehall/compare/68cfaa885826ef8e79a8e6e3d4d05dffcfdf26c6...26b38cb8442ced0b696ce89cc28d05755544415b)

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