chore(deps): update dependency i18next-fs-backend to v2.6.8

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
i18next-fs-backend	2.6.7 → 2.6.8

---

Release Notes

i18next/i18next-fs-backend (i18next-fs-backend)

v2.6.8

Compare Source

Security release. Coordinated disclosure from @​adamyordan. See published advisory GHSA-cchx-rhgv-92hj.

• security: utils.getLastOfPath now descends only into own properties, closing an unauthenticated denial of service that the 2.6.6 prototype-pollution fix did not cover. 2.6.6 denylists __proto__, constructor and prototype, but the walk it guards still stepped into inherited members: the autovivify test (!object[key]) is true for every inherited Object.prototype method, so a queued missing-key string such as hasOwnProperty.call (split to ['hasOwnProperty','call'] in writeFile()) walked into Object.prototype.hasOwnProperty and overwrote its .call with the attacker's fallback value, breaking the own-property check i18next itself runs and returning 500 for every request in the process until restart. The same held for valueOf, toString, isPrototypeOf and the other inherited members the denylist never covered, so extending the denylist would not have closed it. The traversal now gates each descent on Object.prototype.hasOwnProperty.call(object, key), covering setPath, pushPath and getPath, and matching the fix i18next core already carries. Reachable in practice via i18next-http-middleware's missingKeyHandler with saveMissing enabled; see also the matching fix in i18next-http-middleware 3.9.9. Credit: @​adamyordan (GHSA-cchx-rhgv-92hj).

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • "before 6am on monday"
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[github-actions]

Automatic builds from https://github.com/NethServer/nethlink/actions/runs/35547584172.
Commit: 26c1606

Name	Platform	Link
win-app.exe	Windows (x64)	Link
macos-app-x64.dmg	MacOS (x64)	Link
macos-app-arm64.dmg	MacOS (arm64)	Link
linux-app.AppImage	Linux (x64)	Link