Bump engines/chartkick from `f1472e7` to `2cd0842`
Bump engines/chartkick from `f1472e7` to `2cd0842`

Bumps [engines/chartkick](https://github.com/ankane/chartkick) from `f1472e7` to `2cd0842`.
- [Release notes](https://github.com/ankane/chartkick/releases)
- [Commits](https://github.com/ankane/chartkick/compare/f1472e74eeb30fe2e40607e9378d4d562b895ad9...2cd08429f94d8a20e91dd7fd476b8d9acadf56c8)

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