chore(pip): bump httpx-sse from 0.3.1 to 0.4.0 (#487)

Bumps [httpx-sse](https://github.com/florimondmanca/httpx-sse) from 0.3.1 to 0.4.0.
- [Release notes](https://github.com/florimondmanca/httpx-sse/releases)
- [Changelog](https://github.com/florimondmanca/httpx-sse/blob/master/CHANGELOG.md)
- [Commits](florimondmanca/httpx-sse@0.3.1...0.4.0)

---
updated-dependencies:
- dependency-name: httpx-sse
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

requirements/dev.txt

@@ -12,4 +12,4 @@ pre-commit>=2.15.0
 msgpack>=1.0.5
 numpy>=1.24
 httpx==0.25.2
-httpx-sse==0.3.1
+httpx-sse==0.4.0