chore(deps): update dependency google-auth to v2.5.0

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
google-auth	==2.3.3 -> ==2.5.0

---

Release Notes

googleapis/google-auth-library-python

v2.5.0

Compare Source

Features

• ADC can load an impersonated service account credentials. (#​956) (a8eb4c8)

2.4.1 (2022-01-21)

Bug Fixes

• urllib3 import (#​953) (c8b5cae)

v2.4.1

Compare Source

v2.4.0

Compare Source

Features

• add 'py.typed' declaration (#​919) (c993504)
• add api key support (#​826) (3b15092)

Bug Fixes

• deps: allow cachetools 5.0 for python 3.7+ (#​937) (1eae37d)
• fix the message format for metadata server exception (#​916) (e756f08)

Documentation

• fix intersphinx link for 'requests-oauthlib' (#​921) (967be4f)
• note ValueError in verify_oauth2_token (#​928) (82bc5f0)

2.3.3 (2021-11-01)

Bug Fixes

• add fetch_id_token_credentials (#​866) (8f1e9cf)
• fix error in sign_bytes (#​905) (ef31284)
• use 'int.to_bytes' and 'int.from_bytes' for py3 (#​904) (bd0ccc5)

2.3.2 (2021-10-26)

Bug Fixes

• add clock_skew_in_seconds to verify_token functions (#​894) (8e95c1e)

2.3.1 (2021-10-21)

Bug Fixes

• add back python 2.7 for gcloud usage only (#​892) (5bd5ccf)

Documentation

• Fix formatting of GCE_METADATA_HOST (#​890) (e2b3c98)

---

Configuration

📅 Schedule: At any time (no schedule defined).

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

♻ Rebasing: Renovate will not automatically rebase this PR, because other commits have been found.

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

---

• If you want to rebase/retry this PR, click this checkbox.

---

This PR has been generated by WhiteSource Renovate. View repository job log here.

[dandhlee]

ml_engine tests failing but will be resolved in #7409. Admin merging.