chore: bump raptorq from 1.6.3 to 1.6.4 (#18965)

Bumps [raptorq](https://github.com/cberner/raptorq) from 1.6.3 to 1.6.4.
- [Release notes](https://github.com/cberner/raptorq/releases)
- [Commits](https://github.com/cberner/raptorq/compare/v1.6.3...v1.6.4)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

core/Cargo.toml

@@ -38,7 +38,7 @@ num-traits = "0.2"
 rand = "0.7.0"
 rand_chacha = "0.2.2"
 rand_core = "0.6.3"
-raptorq = "1.6.3"
+raptorq = "1.6.4"
 rayon = "1.5.1"
 retain_mut = "0.1.3"
 serde = "1.0.126"