Bump degenerator and nightwatch

Bumps [degenerator](https://github.com/TooTallNate/node-degenerator) to 3.0.2 and updates ancestor dependency [nightwatch](https://github.com/nightwatchjs/nightwatch). These dependencies need to be updated together.


Updates `degenerator` from 1.0.4 to 3.0.2
- [Release notes](https://github.com/TooTallNate/node-degenerator/releases)
- [Commits](TooTallNate/node-degenerator@1.0.4...3.0.2)

Updates `nightwatch` from 1.6.0 to 1.7.13
- [Release notes](https://github.com/nightwatchjs/nightwatch/releases)
- [Commits](nightwatchjs/nightwatch@v1.6.0...v1.7.13)

---
updated-dependencies:
- dependency-name: degenerator
  dependency-type: indirect
- dependency-name: nightwatch
  dependency-type: direct:production
...

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