Bump @mongodb-js/zstd from 1.2.0 to 1.2.1

Bumps [@mongodb-js/zstd](https://github.com/mongodb-js/zstd) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/mongodb-js/zstd/releases)
- [Changelog](https://github.com/mongodb-js/zstd/blob/main/HISTORY.md)
- [Commits](mongodb-js/zstd@v1.2.0...v1.2.1)

---
updated-dependencies:
- dependency-name: "@mongodb-js/zstd"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>