Update css-loader to the latest version 🚀 (#1520)

* chore(package): update css-loader to version 3.5.2

* chore(package): update lockfile package-lock.json

Co-authored-by: greenkeeper[bot] <23040076+greenkeeper[bot]@users.noreply.github.com>

Author: greenkeeper[bot]

package-lock.json

@@ -84,7 +84,7 @@
     "babel-plugin-transform-object-rest-spread": "6.26.0",
     "core-js": "3.6.5",
     "cross-env": "7.0.2",
-    "css-loader": "3.5.1",
+    "css-loader": "3.5.2",
     "eslint": "6.8.0",
     "eslint-plugin-jest": "23.8.2",
     "eslint-plugin-react": "7.19.0",