build(deps): bump i18next from 23.15.1 to 24.2.0 in /frontend

Bumps [i18next](https://github.com/i18next/i18next) from 23.15.1 to 24.2.0.
- [Release notes](https://github.com/i18next/i18next/releases)
- [Changelog](https://github.com/i18next/i18next/blob/master/CHANGELOG.md)
- [Commits](https://github.com/i18next/i18next/compare/v23.15.1...v24.2.0)

---
updated-dependencies:
- dependency-name: i18next
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

frontend/package.json

@@ -21,7 +21,7 @@
   "dependencies": {
     "@reduxjs/toolkit": "^2.2.7",
     "chart.js": "^4.4.4",
-    "i18next": "^23.15.1",
+    "i18next": "^24.2.0",
     "i18next-browser-languagedetector": "^8.0.0",
     "prop-types": "^15.8.1",
     "react": "^18.2.0",