Update dependency css-loader to v3.5.2

Author: renovate-bot

{{ cookiecutter.project_slug }}/client/package-lock.json

@@ -34,7 +34,7 @@
     "@types/use-persisted-state": "0.3.0",
     "@typescript-eslint/eslint-plugin": "2.26.0",
     "@typescript-eslint/parser": "2.26.0",
-    "css-loader": "3.4.2",
+    "css-loader": "3.5.2",
     "dotenv": "8.2.0",
     "eslint": "6.8.0",
     "eslint-config-airbnb": "18.1.0",