chore(deps-dev): bump css-loader from 3.6.0 to 4.2.0 (#139)

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 3.6.0 to 4.2.0.
- [Release notes](https://github.com/webpack-contrib/css-loader/releases)
- [Changelog](https://github.com/webpack-contrib/css-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/css-loader@v3.6.0...v4.2.0)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

package-lock.json

@@ -56,7 +56,7 @@
     "@types/jest": "^26.0.3",
     "@types/loader-utils": "^2.0.0",
     "@types/webpack": "^4.39.1",
-    "css-loader": "^3.2.0",
+    "css-loader": "^4.2.0",
     "jest": "^25.1.0",
     "prettier": "1.19.1",
     "ts-jest": "^25.0.0",