Bump tough-cookie and node-sass in /frontend

Removes [tough-cookie](https://github.com/salesforce/tough-cookie). It's no longer used after updating ancestor dependency [node-sass](https://github.com/sass/node-sass). These dependencies need to be updated together.


Removes `tough-cookie`

Updates `node-sass` from 7.0.1 to 9.0.0
- [Release notes](https://github.com/sass/node-sass/releases)
- [Changelog](https://github.com/sass/node-sass/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sass/node-sass/compare/v7.0.1...v9.0.0)

---
updated-dependencies:
- dependency-name: tough-cookie
  dependency-type: indirect
- dependency-name: node-sass
  dependency-type: direct:development
...

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

frontend/package.json

@@ -36,7 +36,7 @@
     "cross-env": "^7.0.3",
     "css-loader": "^6.5.1",
     "file-loader": "^6.2.0",
-    "node-sass": "^7.0.1",
+    "node-sass": "^9.0.0",
     "sass-loader": "^12.4.0",
     "terser-webpack-plugin": "^5.3.0",
     "vue-loader": "^17.0.0",