Bump style-loader from 0.13.2 to 0.23.1 (#274)

Bumps [style-loader](https://github.com/webpack-contrib/style-loader) from 0.13.2 to 0.23.1.
- [Release notes](https://github.com/webpack-contrib/style-loader/releases)
- [Changelog](https://github.com/webpack-contrib/style-loader/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/style-loader/compare/v0.13.2...v0.23.1)

---
updated-dependencies:
- dependency-name: style-loader
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -150,7 +150,7 @@
     "sinon": "^1.17.2",
     "sinon-chai": "^2.7.0",
     "socket.io-client": "1.4.8",
-    "style-loader": "^0.13.0",
+    "style-loader": "^0.23.1",
     "template-html-loader": "^0.0.4",
     "then-jade": "^2.4.1",
     "url-loader": "^0.6.2",