Bump apps/cartodb from `af6b7e2` to `b52b3df`
Bump apps/cartodb from `af6b7e2` to `b52b3df`

Bumps [apps/cartodb](https://github.com/CartoDB/cartodb) from `af6b7e2` to `b52b3df`.
- [Release notes](https://github.com/CartoDB/cartodb/releases)
- [Commits](https://github.com/CartoDB/cartodb/compare/af6b7e23cca79d21c64f28004e4cc2e6046a64d8...b52b3df6ae0afc90f6acf5b918aae12f3395af7a)

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