Bump nightwatch from 3.6.1 to 3.6.2

Bumps [nightwatch](https://github.com/nightwatchjs/nightwatch) from 3.6.1 to 3.6.2.
- [Release notes](https://github.com/nightwatchjs/nightwatch/releases)
- [Commits](nightwatchjs/nightwatch@v3.6.1...v3.6.2)

---
updated-dependencies:
- dependency-name: nightwatch
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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