Update dependency @google-cloud/storage to v8.4.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@google-cloud/storage (source)	8.2.0 → 8.4.0

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Release Notes

googleapis/google-cloud-node (@​google-cloud/storage)

v8.4.0

Features

• Update API sources and regenerate (#​9554) (8b6837a)

v8.3.0

Features

• tools: Add individual CLI flags for Bun monkey patches (#​9533) (a5eec89)

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