Bumps [bufferutil](https://github.com/websockets/bufferutil) from 4.0.3 to 4.0.4.
- [Release notes](https://github.com/websockets/bufferutil/releases)
- [Commits](https://github.com/websockets/bufferutil/compare/v4.0.3...v4.0.4

)

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

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