chore(deps): update dependency google_cloud_cpp to v3.8.0

[renovate-bot]

This PR contains the following updates:

Package	Type	Update	Change
google_cloud_cpp	http_archive	minor	v3.7.0 → v3.8.0

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Release Notes

googleapis/google-cloud-cpp (google_cloud_cpp)

v3.8.0

Compare Source

Removed Libraries

• The parallelstore client library has been removed because the Parallelstore service has been deprecated.

New Libraries

We are happy to announce the following GA libraries. Unless specifically noted,
the APIs in these libraries are stable, and are ready for production use.

• Agent Identity API

Cloud Quotas API

• The library has been expanded to include the QuotaAdjusterSettingsManager service.

Cloud Sql Admin API

• The library has been expanded to include the Backups and FeatureEligibility services.

Pub/Sub

• fix(pubsub): avoid deadlock by ensuring lease refresh timer runs on cq thread (#​16297)

Storage

• fix(storage): remove duplicate Query calls from AsyncWriterConnectionBuffered and AsyncWriterConnectionResumed (#​16315)
• feat(storage): formally deprecate MD5HashValue and Crc32cChecksumValue (#​16311)
• fix(storage): limit retries in InsertObjectWithBadChecksum sample (#​16322)
• feat(storage): implement pacing & eviction for pre-warmed ranges in ObjectDescriptorImpl (#​16309)
• fix(storage): redesign AsyncWriterConnectionImpl Flush and Query (#​16307)
• feat(storage): support pre-warming read ranges in AsyncConnection (#​16275)
• fix(storage): Use append_object_spec in EnrichSpan for ResumeAppendableUpload (#​16296)
• feat(storage): Make PrecomputedChecksumsOption compatible with Options (#​16295)
• feat(storage): add resource span attributes for ACO ( App Centric Observability ) for rewrite API in async client (#​16285)
• feat(storage): add resource span attributes for ACO ( App Centric Observability ) for async client (#​16151)
• fix(storage): consume server responses before finishing stream in AsyncWriter Close/Finalize (#​16270)
• feat(storage): migrate sync client to unified checksum options (#​16264)
• fix(storage): preserve flush state across concurrent flushes in async writers (#​16274)
• feat(storage): add support for bucket metadata call in async client (#​16262)
• feat(storage): add resource span attributes for ACO ( App Centric Observability ) (#​16119)
• feat(storage): Migrate async client to unified checksum options (#​16261)
• feat(storage): introduce unified checksum options and deprecate old options (#​16260)
• fix(storage): prevent indefinite hang when calling Close() on async appendable uploads (#​16255)

Google APIs interface definitions

• This release is based on definitions as of 2026-07-28T18:29:07-07:00

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[dpebot]

/gcbrun

[gemini-code-assist]

Code Review

This pull request updates the google_cloud_cpp dependency from version 3.7.0 to 3.8.0 across numerous WORKSPACE.bazel files, updating the download URL, strip prefix, and SHA256 checksum. There are no review comments on these changes, and I have no further feedback to provide.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.23%. Comparing base (c49c86f) to head (ad66932).

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #16327   +/-   ##
=======================================
  Coverage   92.23%   92.23%           
=======================================
  Files        2227     2227           
  Lines      209169   209169           
=======================================
+ Hits       192929   192932    +3     
+ Misses      16240    16237    -3     

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