Bump apps/markus from `8231ee9` to `aa8819e`
Bump apps/markus from `8231ee9` to `aa8819e`

Bumps [apps/markus](https://github.com/MarkUsProject/Markus) from `8231ee9` to `aa8819e`.
- [Release notes](https://github.com/MarkUsProject/Markus/releases)
- [Commits](https://github.com/MarkUsProject/Markus/compare/8231ee97ef72e0dbf4b17944a7c276f91d5541e2...aa8819e28f6b96c7fdc1febd17571544c3e6453a)

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