Bump ruzstd from 0.7.2 to 0.7.3

Bumps [ruzstd](https://github.com/KillingSpark/zstd-rs) from 0.7.2 to 0.7.3.
- [Release notes](https://github.com/KillingSpark/zstd-rs/releases)
- [Changelog](https://github.com/KillingSpark/zstd-rs/blob/master/Changelog.md)
- [Commits](KillingSpark/zstd-rs@v0.7.2...v0.7.3)

---
updated-dependencies:
- dependency-name: ruzstd
  dependency-type: indirect
...

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Author: dependabot[bot]