Bump chartkick from 3.3.0 to 3.4.0 (#617)
Bump chartkick from 3.3.0 to 3.4.0 (#617)

Bumps [chartkick](https://github.com/ankane/chartkick) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/ankane/chartkick/releases)
- [Changelog](https://github.com/ankane/chartkick/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ankane/chartkick/compare/v3.3.0...v3.4.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
meedan/check-api,meedan/check-api,meedan/check-api,meedan/check-api,meedan/check-api