Bump types-contextvars from 2.4.5 to 2.4.6 (#1668)

Bumps [types-contextvars](https://github.com/python/typeshed) from 2.4.5 to 2.4.6.
- [Release notes](https://github.com/python/typeshed/releases)
- [Commits](https://github.com/python/typeshed/commits)

---
updated-dependencies:
- dependency-name: types-contextvars
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -10,7 +10,7 @@ flake8==3.9.2
 isort==5.10.1
 mypy==0.960
 types-requests==2.26.3
-types-contextvars==2.4.5
+types-contextvars==2.4.6
 types-PyYAML==6.0.4
 types-dataclasses==0.6.5
 pytest==7.1.2