chore: 🤖 update dependency pnpm to v8.15.4

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
pnpm (source)	8.15.3 -> 8.15.4

---

Release Notes

pnpm/pnpm (pnpm)

### [`v8.15.4`](https://togithub.com/pnpm/pnpm/compare/v8.15.3...v8.15.4) [Compare Source](https://togithub.com/pnpm/pnpm/compare/v8.15.3...v8.15.4)

---

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 has been generated by Mend Renovate. View repository job log here.