Update dependency undici to ^6.19.8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
undici (source)	^6.19.7 -> ^6.19.8

---

Release Notes

nodejs/undici (undici)

### [`v6.19.8`](https://togithub.com/nodejs/undici/compare/v6.19.7...3d3ce0695c8c3f9a8f3c8af90dd42d0569d3f0bb) [Compare Source](https://togithub.com/nodejs/undici/compare/v6.19.7...v6.19.8)

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, 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.