build(deps): bump pytest-asyncio from 0.21.1 to 0.23.8

Bumps [pytest-asyncio](https://github.com/pytest-dev/pytest-asyncio) from 0.21.1 to 0.23.8.
- [Release notes](https://github.com/pytest-dev/pytest-asyncio/releases)
- [Commits](pytest-dev/pytest-asyncio@v0.21.1...v0.23.8)

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

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

requirements.txt

@@ -4,7 +4,7 @@ pytest==7.4.2
 python-dotenv==1.0.0
 setuptools==69.0.2
 grpcio-tools==1.60.0
-pytest-asyncio==0.21.1
+pytest-asyncio==0.23.8
 grpc-google-iam-v1==0.13.0
 matplotlib
 pydantic==2.5.2