Bumps [deps/zstd](https://github.com/facebook/zstd) from `02ef78b` to `43f21a6`.
- [Release notes](https://github.com/facebook/zstd/releases)
- [Commits](02ef78be58...43f21a600e
)
---
updated-dependencies:
- dependency-name: deps/zstd
dependency-type: direct:production
...
Signed-off-by: dependabot[bot] <support@github.com>