Update debug requirement from 4.1.0 to 4.1.1 (#3964)

Updates the requirements on [debug](https://github.com/visionmedia/debug) to permit the latest version.
- [Release notes](https://github.com/visionmedia/debug/releases)
- [Commits](https://github.com/visionmedia/debug/commits/4.1.1)

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

package.json

@@ -104,7 +104,7 @@
 		"css-loader": "1.0.1",
 		"cssnano": "4.1.8",
 		"dateformat": "3.0.3",
-		"debug": "4.1.0",
+		"debug": "4.1.1",
 		"deep-equal": "1.0.1",
 		"deepcopy": "0.6.3",
 		"diskusage": "1.0.0",