Bump blake3 from 1.8.3 to 1.8.4 (#438)

Bumps [blake3](https://github.com/BLAKE3-team/BLAKE3) from 1.8.3 to 1.8.4.
- [Release notes](https://github.com/BLAKE3-team/BLAKE3/releases)
- [Commits](BLAKE3-team/BLAKE3@1.8.3...1.8.4)

---
updated-dependencies:
- dependency-name: blake3
  dependency-version: 1.8.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]