fix(deps): update dependency debug to v4.2.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
debug	dependencies	minor	4.1.1 -> 4.2.0

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Release Notes

visionmedia/debug

### [`v4.2.0`](https://togithub.com/visionmedia/debug/releases/4.2.0) [Compare Source](https://togithub.com/visionmedia/debug/compare/4.1.1...4.2.0) ### Minor Release - Replaced phantomJS with chrome backend for browser tests - Deprecated and later removed Changelog.md in lieu of releases page - Removed bower.json ([#​602](https://togithub.com/visionmedia/debug/issues/602)) - Removed .eslintrc (since we've switched to XO) - Removed .coveralls.yml - Removed the build system that was in place for various alternate package managers - Removed the examples folder ([#​650](https://togithub.com/visionmedia/debug/issues/650)) - Switched to `console.debug` **in the browser only** when it is available ([#​600](https://togithub.com/visionmedia/debug/issues/600)) - Copied custom logger to namespace extension ([#​646](https://togithub.com/visionmedia/debug/issues/646)) - Added issue and pull request templates - Added `"engines"` key to package.json - Added ability to control `selectColor` ([#​747](https://togithub.com/visionmedia/debug/issues/747)) - Updated dependencies - Marked `supports-color` as an optional peer dependency

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