Bump pytest-asyncio from 0.20.3 to 0.23.6 (#585)

Bumps [pytest-asyncio](https://github.com/pytest-dev/pytest-asyncio) from 0.20.3 to 0.23.6.
- [Release notes](https://github.com/pytest-dev/pytest-asyncio/releases)
- [Commits](pytest-dev/pytest-asyncio@v0.20.3...v0.23.6)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

test_requirements.txt

@@ -2,7 +2,7 @@
 # generated code.
 protobuf==4.25.3
 pytest==7.4.3
-pytest-asyncio==0.20.3
+pytest-asyncio==0.23.6
 grpc-stubs==1.53.0.2
 grpcio-tools==1.56.2
 types-protobuf==4.24