fix(deps): Update dependency google-auth to v2.38.0

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
google-auth	==2.33.0 -> ==2.38.0

---

Release Notes

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

v2.38.0

Compare Source

Features

• Adding domain-wide delegation flow in impersonated credential (#​1624) (34ee3fe)

Documentation

• Add warnings regarding consuming externally sourced credentials (d049370)

v2.37.0

Compare Source

Features

• Allow users to use jwk keys for verifying ID token (#​1641) (98c3ed9)

v2.36.0

Compare Source

Features

• IAM signblob retries (#​1600) (484c8db)
• Making iam endpoint universe-aware (#​1604) (16c728d)
• Support External Account Authorized User as a Source Credential for impersonated credentials in ADC (#​1608) (875796c)

Bug Fixes

• Adding default parameters to updated interfaces (#​1622) (8cf1cb1)
• Change universe_domain to universe-domain (#​1613) (168fcc6)
• Remove base class to avoid type conflict (#​1619) (9e2789a)
• Revert templates for iam endpoints (#​1614) (0a4363a)
• Update secret (#​1611) (f070de0)
• Update secret (#​1617) (10f42a7)
• Update secret (#​1621) (6be19fb)

v2.35.0

Compare Source

Features

• Add cred info to ADC creds (#​1587) (6f75dd5)
• Add support for asynchronous AuthorizedSession api (#​1577) (2910b6b)

Bug Fixes

• Remove token_info call from token refresh path (#​1595) (afb9e5a)

v2.34.0

Compare Source

Features

• auth: Update get_client_ssl_credentials to support X.509 workload certs (#​1558) (18c2ec1)

Bug Fixes

• Retry token request on retryable status code (#​1563) (f858a15)

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.