build(deps-dev): bump node-sass from 4.14.1 to 6.0.1

Bumps [node-sass](https://github.com/sass/node-sass) from 4.14.1 to 6.0.1.
- [Release notes](https://github.com/sass/node-sass/releases)
- [Changelog](https://github.com/sass/node-sass/blob/master/CHANGELOG.md)
- [Commits](sass/node-sass@v4.14.1...v6.0.1)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

package.json

@@ -41,7 +41,7 @@
     "codelyzer": "^6.0.2",
     "fibers": "5.0.0",
     "html-webpack-plugin": "4.3.0",
-    "node-sass": "4.14.1",
+    "node-sass": "6.0.1",
     "shx": "^0.3.3",
     "tslint": "6.1.2",
     "typescript": "~4.0.8"