[post-migration] google-cloud-storage post-migration tasks

[parthea]

googleapis/python-storage was moved to https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-storage in PR #16192

• Ensure that the following changes make it into the release notes for the next release due to changes made to setup.py to align with the state of google-cloud-python:

  • Python 3.8 was dropped
  • The package now requires protobuf >= 4.25.8, < 8.0.0

• Ensure that the presubmit called python-sdk-zb-system-test (gcs-aiml-clients-testing-101) is present and runs in google cloudbuild for google-cloud-python. (DONE, see PR #16581)

• Ensure that the analogous presubmit for the zonal bucket system test is present and runs in google cloudbuild for python-docs-samples see PR #14022

• Ensure that the snippets from the split repo are migrated to the python-docs-samples repo (DONE, see PR #13989).

• Ensure that system tests as found in Kokoro System Tests run successfully (DONE, see PR #16578).

[chandra-siri]

Hi @parthea , @chalmerlowe

There's one more task, details in b/500990583

[chalmerlowe]

Hi @parthea , @chalmerlowe

There's one more task, details in b/500990583

I created a PR in python-docs-samples with a cloudbuild yaml config and a zonal bucket script.
I mirrored it off the files in google-cloud-python. I went in and changed paths where possible to align with the directory structure in python-docs-samples.

• I do not know what other configs or permissions (i.e. in projects, storage buckets, etc) need to be updated to enable these tests, nor whether the config OR script need additional updates.

@chandra-siri @chingor13 Please advise.