Bump sass from 1.71.0 to 1.77.2 in /frontend

Bumps [sass](https://github.com/sass/dart-sass) from 1.71.0 to 1.77.2.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/main/CHANGELOG.md)
- [Commits](sass/dart-sass@1.71.0...1.77.2)

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

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

Author: dependabot[bot]

frontend/package-lock.json

@@ -51,7 +51,7 @@
     "jsdom": "^24.0.0",
     "redux-mock-store": "^1.5.4",
     "redux-saga-test-plan": "^4.0.6",
-    "sass": "^1.54.8",
+    "sass": "^1.77.2",
     "vite-plugin-eslint": "^1.8.1"
   }
 }