build(deps): bump httparse from 1.9.3 to 1.9.4

Bumps [httparse](https://github.com/seanmonstar/httparse) from 1.9.3 to 1.9.4.
- [Release notes](https://github.com/seanmonstar/httparse/releases)
- [Commits](seanmonstar/httparse@v1.9.3...v1.9.4)

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

Signed-off-by: dependabot[bot] <[email protected]>