Bump pytest-asyncio from 0.15.1 to 0.16.0

Bumps [pytest-asyncio](https://github.com/pytest-dev/pytest-asyncio) from 0.15.1 to 0.16.0.
- [Release notes](https://github.com/pytest-dev/pytest-asyncio/releases)
- [Commits](https://github.com/pytest-dev/pytest-asyncio/compare/v0.15.1...v0.16.0)

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

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

requirements-dev.txt

@@ -8,7 +8,7 @@ flake8==4.0.0
 flake8-tidy-imports==4.5.0
 mypy==0.910
 pytest==6.2.5
-pytest-asyncio==0.15.1
+pytest-asyncio==0.16.0
 pytest-cov==3.0.0
 pytest-mock==3.6.1
 pytest-random-order==1.0.4