Bump pytest-asyncio from 0.15.1 to 0.16.0 (#2005)

Bump pytest-asyncio from 0.15.1 to 0.16.0 (#2005)

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:production
  update-type: version-update:semver-minor
...

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Co-authored-by: Tom Christie <tom@tomchristie.com>