chore(deps): update dependency google_cloud_cpp to v2.30.0

[renovate-bot]

This PR contains the following updates:

Package	Type	Update	Change
google_cloud_cpp	http_archive	minor	v2.29.0 -> v2.30.0

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Release Notes

googleapis/google-cloud-cpp (google_cloud_cpp)

v2.30.0

Compare Source

Updated Libraries

• AI Platform API - new
  EvaluationServiceClient
• Dialogflow ES API - new
  EncryptionSpecServiceClient and GeneratorsClient

AI Platform API

• doc(aiplatform): add Vertex AI samples (#​14703)

KMS

• AutokeyClient::ListKeyHandles(...) signature has changed to return an
  iterable type. Our telemetry indicates that there are no C++ applications
  using this API, and therefore we do not consider this a breaking change.
  (#​14726)

OpenTelemetry

• feat(otel): release GCM exporter (#​14693)

Pub/Sub

• feat(mixin): add manual changes for pubsub and generate mixin code (#​14756)
• docs(pubsub): Add ingestion from GCS topic creation sample (#​14749)

Spanner

• docs(spanner): Add samples for backup schedule feature APIs (#​14720)
• docs(spanner): create a few code snippets as examples for using Spanner Graph using cpp (#​14660)

Storage

• The gRPC plugin is now GA. The [Using the gRPC plugin][storage-grpc]
  guide describes this feature in more detail. When using GCS from Google
  Compute Engine (GCE) this plugin can enable higher total throughput.
• feat(storage): Add ability to restore soft deleted objects (#​14710)

Common Libraries

• fix(rest): promote buffer curl reads from to member variable (#​14732)
• fix: respect GOOGLE_CLOUD_QUOTA_PROJECT (#​14684)

Google APIs interface definitions

• This release is based on definitions as of 2024-09-24T10:34:24-07:00

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[dpebot]

/gcbrun