[Security] Bump color-string from 1.5.4 to 1.6.0
[Security] Bump color-string from 1.5.4 to 1.6.0

Bumps [color-string](https://github.com/Qix-/color-string) from 1.5.4 to 1.6.0. **This update includes a security fix.**
- [Release notes](https://github.com/Qix-/color-string/releases)
- [Changelog](https://github.com/Qix-/color-string/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Qix-/color-string/compare/1.5.4...1.6.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
maddesigns/formwork