build(deps): bump types-python-dateutil from 2.8.0 to 2.8.1

Bumps [types-python-dateutil](https://github.com/python/typeshed) from 2.8.0 to 2.8.1.
- [Release notes](https://github.com/python/typeshed/releases)
- [Commits](https://github.com/python/typeshed/commits)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements-test.txt

@@ -8,7 +8,7 @@ jsonschema==4.0.1
 coverage==6.0.1
 doc8==0.9.1
 
-types-python-dateutil==2.8.0
+types-python-dateutil==2.8.1
 types-orjson==3.6.0
 
 pre-commit==2.15.0