Bump worker-loader from 1.1.1 to 2.0.0 (#353)

Bumps [worker-loader](https://github.com/webpack-contrib/worker-loader) from 1.1.1 to 2.0.0.
- [Release notes](https://github.com/webpack-contrib/worker-loader/releases)
- [Changelog](https://github.com/webpack-contrib/worker-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/worker-loader@v1.1.1...v2.0.0)

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

Author: dependabot[bot]

package-lock.json

@@ -167,7 +167,7 @@
     "webpack-error-notification": "0.1.8",
     "webpack-hot-middleware": "2.17.1",
     "websocket": "1.0.28",
-    "worker-loader": "1.1.1",
+    "worker-loader": "2.0.0",
     "yauzl": "2.10.0"
   },
   "dependencies": {