fix(deps): update dependency @mongodb-js/zstd to v1.2.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@mongodb-js/zstd	1.2.0 -> 1.2.1

---

Release Notes

mongodb-js/zstd (@​mongodb-js/zstd)

### [`v1.2.1`](https://redirect.github.com/mongodb-js/zstd/blob/HEAD/HISTORY.md#121-2024-09-06) [Compare Source](https://redirect.github.com/mongodb-js/zstd/compare/v1.2.0...v1.2.1)

---

Configuration

📅 Schedule: Branch creation - " 0-4 * 3" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ 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.