Bump anyio from 4.3.0 to 4.6.0

Bumps [anyio](https://github.com/agronholm/anyio) from 4.3.0 to 4.6.0.
- [Release notes](https://github.com/agronholm/anyio/releases)
- [Changelog](https://github.com/agronholm/anyio/blob/master/docs/versionhistory.rst)
- [Commits](agronholm/anyio@4.3.0...4.6.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

setup.py

@@ -56,7 +56,7 @@
             "pytest-cov",
             "pytest-asyncio",
             "pytest-httpx",
-            "anyio==4.3.0",
+            "anyio==4.6.0",
             "flake8>=2.6.0",
             "black",
             "types-aiofiles>=24.0,<25.0",