chore(deps-dev): update types-python-dateutil requirement (appium#973)

--- updated-dependencies: - dependency-name: types-python-dateutil dependency-type: direct:development ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Pipfile

@@ -16,7 +16,7 @@ pytest = "~=8.1"
 pytest-cov = "~=4.1"
 python-dateutil = "~=2.9"
 tox = "~=4.14"
-types-python-dateutil = "~=2.8"
+types-python-dateutil = "~=2.9"
 
 [packages]
 selenium = "~=4.18"