Bump css-loader from 2.1.1 to 3.5.3

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 2.1.1 to 3.5.3.
- [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@v2.1.1...v3.5.3)

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

Author: dependabot-preview[bot]

package.json

@@ -48,7 +48,7 @@
     "babel-plugin-angularjs-annotate": "0.10.0",
     "clean-webpack-plugin": "2.0.1",
     "copy-webpack-plugin": "5.0.2",
-    "css-loader": "2.1.1",
+    "css-loader": "3.5.3",
     "enzyme": "3.9.0",
     "enzyme-adapter-react-16": "1.11.2",
     "enzyme-to-json": "3.3.5",