Bump httpx from 0.27.2 to 0.28.1 (#3218)

Bumps [httpx](https://github.com/encode/httpx) from 0.27.2 to 0.28.1.
- [Release notes](https://github.com/encode/httpx/releases)
- [Changelog](https://github.com/encode/httpx/blob/master/CHANGELOG.md)
- [Commits](encode/httpx@0.27.2...0.28.1)

---
updated-dependencies:
- dependency-name: httpx
  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>

Author: dependabot[bot]

poetry.lock

@@ -33,7 +33,7 @@ pydantic-settings = "2.6.1"
 
 [tool.poetry.dev-dependencies]
 coverage = "7.6.10"
-httpx = "0.27.2"
+httpx = "0.28.1"
 pre-commit = "4.0.1"
 pip-licenses = "5.0.0"
 pytest = "8.3.3"