build(deps-dev): bump httpx from 0.25.2 to 0.26.0 (#1737)

Bumps [httpx](https://github.com/encode/httpx) from 0.25.2 to 0.26.0.
- [Release notes](https://github.com/encode/httpx/releases)
- [Changelog](https://github.com/encode/httpx/blob/master/CHANGELOG.md)
- [Commits](encode/httpx@0.25.2...0.26.0)

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

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

Author: dependabot[bot]

poetry.lock

@@ -55,7 +55,7 @@ mypy = { version = ">=1.5,<1.6", optional = true }
 anyio = "^4.2"
 trio = "^0.23"
 attrs = "^23.1"
-httpx = "^0.25"
+httpx = "^0.26"
 
 wemake-python-styleguide = "^0.18"
 flake8-pytest-style = "^1.6"