Bump chai from 4.1.2 to 4.2.0 (#2124)

Bumps [chai](https://github.com/chaijs/chai) from 4.1.2 to 4.2.0.
- [Release notes](https://github.com/chaijs/chai/releases)
- [Changelog](https://github.com/chaijs/chai/blob/master/History.md)
- [Commits](chaijs/chai@4.1.2...4.2.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>