Fix errors under pep8 1.6.1.

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* chore(deps): update all dependencies

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* revert

* attempt to fix flaky test

* use build specific project for test

* attempt to fix flaky test

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Co-authored-by: Anthonios Partheniou <partheniou@google.com>

…p/templates/python_library/.kokoro (#601)

Source-Link: googleapis/synthtool@e13b22b
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-python:latest@sha256:97b671488ad548ef783a452a9e1276ac10f144d5ae56d98cc4bf77ba504082b4

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Co-authored-by: Daniel Sanche <sanche@google.com>

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Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: Anthonios Partheniou <partheniou@google.com>

When an operation on the global cache is tried and there is a transient
error, such as not being able to connect to a Redis or Memcached server,
if the operation is being tried in strict mode, then the operation is
now retried a number of times before the transient error is eventually
raised to the application layer.

Implements #601

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PR created by the Librarian CLI to initialize a release. Merging this PR
will auto trigger a release.

Librarian Version: v0.7.0
Language Image:
us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator@sha256:ce48ed695c727f7e13efd1fd68f466a55a0d772c87b69158720cec39965bc8b2
<details><summary>google-cloud-datastore: 2.22.0</summary>

##
[2.22.0](googleapis/python-datastore@v2.21.0...v2.22.0)
(2025-12-12)

### Bug Fixes

* remove setup.cfg configuration for creating universal wheels (#601)
([df729015](googleapis/python-datastore@df729015))

</details>

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