chore(deps): update dependency google-cloud-storage to v1.28.1 [(#3785)](https://github.com/GoogleCloudPlatform/python-docs-samples/issues/3785)
chore(deps): update dependency google-cloud-storage to v1.28.1 [(#3785)](https://github.com/GoogleCloudPlatform/python-docs-samples/issues/3785)

* chore(deps): update dependency google-cloud-storage to v1.28.1

* [asset] testing: use uuid instead of time

Co-authored-by: Takashi Matsuo <f7c23db50f898cb58348f8ccc2931585dc97581a@google.com>

googleapis/python-automl,googleapis/python-automl