Bump pytest-asyncio from 0.16.0 to 0.18.3 (#2198)

* Bump pytest-asyncio from 0.16.0 to 0.18.3

Bumps [pytest-asyncio](https://github.com/pytest-dev/pytest-asyncio) from 0.16.0 to 0.18.3.
- [Release notes](https://github.com/pytest-dev/pytest-asyncio/releases)
- [Changelog](https://github.com/pytest-dev/pytest-asyncio/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest-asyncio/compare/v0.16.0...v0.18.3)

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

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

* Update setup.cfg

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Tom Christie <tom@tomchristie.com>

requirements.txt

@@ -30,7 +30,7 @@ isort==5.10.1
 mypy==0.910
 types-certifi==2021.10.8.2
 pytest==7.1.2
-pytest-asyncio==0.16.0
+pytest-asyncio==0.18.3
 pytest-trio==0.7.0
 trio==0.20.0
 trio-typing==0.7.0

setup.cfg

@@ -21,6 +21,7 @@ addopts = -rxXs
 filterwarnings =
   error
   default:::uvicorn
+asyncio_mode = strict
 markers =
   copied_from(source, changes=None): mark test as copied from somewhere else, along with a description of changes made to accodomate e.g. our test setup
   network: marks tests which require network connection. Used in 3rd-party build environments that have network disabled.