chore(deps): bump react-i18next from 15.5.2 to 15.6.0 in /frontend

Bumps [react-i18next](https://github.com/i18next/react-i18next) from 15.5.2 to 15.6.0.
- [Changelog](https://github.com/i18next/react-i18next/blob/master/CHANGELOG.md)
- [Commits](https://github.com/i18next/react-i18next/compare/v15.5.2...v15.6.0)

---
updated-dependencies:
- dependency-name: react-i18next
  dependency-version: 15.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

frontend/package-lock.json

@@ -40,7 +40,7 @@
         "react-countdown": "^2.3.6",
         "react-dom": "^19.1.0",
         "react-grid-layout": "^1.5.2",
-        "react-i18next": "^15.5.2",
+        "react-i18next": "^15.6.0",
         "react-image": "^4.1.0",
         "react-leaflet": "^5.0.0",
         "react-leaflet-markercluster": "^5.0.0-rc.0",
@@ -14871,12 +14871,12 @@
       }
     },
     "node_modules/react-i18next": {
-      "version": "15.5.2",
-      "resolved": "https://registry.npmjs.org/react-i18next/-/react-i18next-15.5.2.tgz",
-      "integrity": "sha512-ePODyXgmZQAOYTbZXQn5rRsSBu3Gszo69jxW6aKmlSgxKAI1fOhDwSu6bT4EKHciWPKQ7v7lPrjeiadR6Gi+1A==",
+      "version": "15.6.0",
+      "resolved": "https://registry.npmjs.org/react-i18next/-/react-i18next-15.6.0.tgz",
+      "integrity": "sha512-W135dB0rDfiFmbMipC17nOhGdttO5mzH8BivY+2ybsQBbXvxWIwl3cmeH3T9d+YPBSJu/ouyJKFJTtkK7rJofw==",
       "license": "MIT",
       "dependencies": {
-        "@babel/runtime": "^7.25.0",
+        "@babel/runtime": "^7.27.6",
         "html-parse-stringify": "^3.0.1"
       },
       "peerDependencies": {

frontend/package.json

@@ -87,7 +87,7 @@
     "react-countdown": "^2.3.6",
     "react-dom": "^19.1.0",
     "react-grid-layout": "^1.5.2",
-    "react-i18next": "^15.5.2",
+    "react-i18next": "^15.6.0",
     "react-image": "^4.1.0",
     "react-leaflet": "^5.0.0",
     "react-leaflet-markercluster": "^5.0.0-rc.0",