build(deps): update python-dateutil requirement from ~=2.9.0 to ~=3.0.0

Updates the requirements on [python-dateutil](https://github.com/dateutil/dateutil) to permit the latest version.
- [Release notes](https://github.com/dateutil/dateutil/releases)
- [Changelog](https://github.com/dateutil/dateutil/blob/master/NEWS)
- [Commits](dateutil/dateutil@2.9.0...3.0.0)

---
updated-dependencies:
- dependency-name: python-dateutil
  dependency-version: 3.0.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements-test.txt

@@ -1,7 +1,7 @@
 mysqlclient~=2.3.0
 psycopg~=3.3.4
 sqlparse~=0.6.0
-python-dateutil~=2.9.0
+python-dateutil~=3.0.0
 tblib~=3.2.2
 openapi-core~=0.23.1
 jsonschema-path~=0.4.6