chore(deps-dev): bump httpx from 0.25.2 to 0.26.0

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
...

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

Author: dependabot[bot]

requirements-dev.txt

@@ -34,7 +34,7 @@ hpack==4.0.0
 
 httpcore==1.0.2
 
-httpx==0.25.2
+httpx==0.26.0
 
 hyperframe==6.0.1