⬆️ Bump sass-loader from 8.0.2 to 9.0.0

Bumps [sass-loader](https://github.com/webpack-contrib/sass-loader) from 8.0.2 to 9.0.0.
- [Release notes](https://github.com/webpack-contrib/sass-loader/releases)
- [Changelog](https://github.com/webpack-contrib/sass-loader/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/sass-loader/compare/v8.0.2...v9.0.0)

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

package.json

@@ -61,7 +61,7 @@
     "node-sass": "^4.14.1",
     "prettier": "^2.0.5",
     "pretty-quick": "^2.0.1",
-    "sass-loader": "^8.0.2",
+    "sass-loader": "^9.0.0",
     "start-server-and-test": "^1.11.0"
   }
 }