Bump sass from 1.53.0 to 1.71.1 in /frontend

Bumps [sass](https://github.com/sass/dart-sass) from 1.53.0 to 1.71.1.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/main/CHANGELOG.md)
- [Commits](sass/dart-sass@1.53.0...1.71.1)

---
updated-dependencies:
- dependency-name: sass
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

frontend/package.json

@@ -25,7 +25,7 @@
     "react-use": "^17.4.0",
     "reactstrap": "^9.2.0",
     "recharts": "^2.6.2",
-    "sass": "^1.52.1",
+    "sass": "^1.71.1",
     "web-vitals": "^2.1.4",
     "zustand": "^4.0.0"
   },