Bump pytest-httpx from 0.30.0 to 0.31.2 in /ci/latest

Bumps [pytest-httpx](https://github.com/Colin-b/pytest_httpx) from 0.30.0 to 0.31.2.
- [Release notes](https://github.com/Colin-b/pytest_httpx/releases)
- [Changelog](https://github.com/Colin-b/pytest_httpx/blob/develop/CHANGELOG.md)
- [Commits](Colin-b/pytest_httpx@v0.30.0...v0.31.2)

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

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

ci/latest/requirements.txt

@@ -10,5 +10,5 @@ black==24.8.0
 pytest-asyncio==0.24.0
 pytest-cov==5.0.0
 pytest==8.3.2
-pytest-httpx==0.30.0
+pytest-httpx==0.31.2
 deepdiff==8.0.1