Bump apps/discourse from `74ca5ec` to `85c4e8f`
Bump apps/discourse from `74ca5ec` to `85c4e8f`

Bumps [apps/discourse](https://github.com/discourse/discourse) from `74ca5ec` to `85c4e8f`.
- [Release notes](https://github.com/discourse/discourse/releases)
- [Commits](https://github.com/discourse/discourse/compare/74ca5ec743294491ce70e491901fb7870c71488b...85c4e8fd32fdf61a2987c2b181661bbd7d203913)

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