⬆ Update anyio[trio] requirement from <4.0.0,>=3.2.1 to >=3.2.1,<5.0.0

Updates the requirements on [anyio[trio]](https://github.com/agronholm/anyio) to permit the latest version.
- [Release notes](https://github.com/agronholm/anyio/releases)
- [Changelog](https://github.com/agronholm/anyio/blob/master/docs/versionhistory.rst)
- [Commits](agronholm/anyio@3.2.1...4.3.0)

---
updated-dependencies:
- dependency-name: anyio[trio]
  dependency-type: direct:production
...

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

requirements-tests.txt

@@ -15,7 +15,7 @@ orjson >=3.2.1,<4.0.0
 ujson >=4.0.1,!=4.0.2,!=4.1.0,!=4.2.0,!=4.3.0,!=5.0.0,!=5.1.0,<6.0.0
 python-multipart >=0.0.7,<0.1.0
 flask >=1.1.2,<3.0.0
-anyio[trio] >=3.2.1,<4.0.0
+anyio[trio] >=3.2.1,<5.0.0
 python-jose[cryptography] >=3.3.0,<4.0.0
 pyyaml >=5.3.1,<7.0.0
 passlib[bcrypt] >=1.7.2,<2.0.0