chore(deps): update dependency google-auth to v2.47.0

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Confidence
google-auth	==2.45.0 → ==2.47.0

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Release Notes

googleapis/google-auth-library-python (google-auth)

v2.47.0

Compare Source

Features

• drop cachetools dependency in favor of simple local implementation (#​1590) (5c07e1c4f52bc77a1b16fa3b7b3c5269c242f6f4)

Bug Fixes

• Python 3.8 support (#​1918) (60dc20014a35ec4ba71e8065b9a33ecbdbeca97a)

v2.46.0

Compare Source

Documentation

• update urllib3 docstrings for v2 compatibility (#​1903) (3f1aeea2d1014ea1d244a4c3470e52d74d55404b)

Features

• Recognize workload certificate config in has_default_client_cert_source for mTLS for Agentic Identities (#​1907) (0b9107d573123e358c347ffa067637f992af61b4)

Bug Fixes

• add types to default and verify_token and Request init based on comments in the source code. (#​1588) (59a5f588f7793b59d923a4185c8c07738da618f7)
• fix the document of secure_authorized_session (#​1536) (5d0014707fc359782df5ccfcaa75fd372fe9dce3)
• remove setup.cfg configuration for creating universal wheels (#​1693) (c767531ce05a89002d109f595187aff1fcaacfb7)
• use .read() instead of .content.read() in aiohttp transport (#​1899) (12f4470f808809e8abf1141f98d88ab720c3899b)
• raise RefreshError for missing token in impersonated credentials (#​1897) (94d04e090fdfc61926dd32bc1d65f8820b9cede5)
• Fix test coverage for mtls_helper (#​1886) (02e71631fe275d93825c2e957e830773e75133f7)

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[gemini-code-assist]

Summary of Changes

Hello @renovate-bot, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request automates the update of the google-auth Python library to its latest stable version, 2.47.0. This update brings several enhancements, including a streamlined caching mechanism, improved compatibility for Python 3.8 environments, and new features related to mTLS for Agentic Identities, ensuring the project benefits from the latest security and performance improvements from the Google authentication library.

Highlights

• Dependency Update: The google-auth library has been updated from version 2.45.0 to 2.47.0.
• Performance Improvement: Version 2.47.0 removes the cachetools dependency, replacing it with a simpler local implementation, which could lead to a smaller dependency footprint and potentially improved performance.
• Python 3.8 Compatibility: The update includes a bug fix in v2.47.0 specifically addressing Python 3.8 support, ensuring better compatibility for projects using this Python version.
• mTLS for Agentic Identities: Version 2.46.0 introduces a feature to recognize workload certificate configuration for mTLS (mutual TLS) when dealing with Agentic Identities.

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[gemini-code-assist]

Code Review

This pull request updates the google-auth dependency from 2.45.0 to 2.47.0. While this is a standard dependency update, the new version 2.47.0 drops support for Python 3.7, requiring Python 3.8+. The project's test configuration for snippets, located in samples/cloud-client/snippets/noxfile.py, still includes Python 3.7 in its test matrix. This will cause a build failure. I have added a critical comment with a suggested code change to address this by using Python version markers in requirements.txt.

[gemini-code-assist]

The updated dependency google-auth==2.47.0 requires Python 3.8 or newer, dropping support for Python 3.7. The test configuration in samples/cloud-client/snippets/noxfile.py includes Python 3.7 in its test matrix, which will cause the CI build to fail for that version. To resolve this, you should use Python version markers to install google-auth==2.45.0 (the previous version) for Python 3.7, and 2.47.0 for Python 3.8 and newer, similar to how pytest is handled in this file.

google-auth==2.45.0; python_version < '3.8'
google-auth==2.47.0; python_version >= '3.8'