test(storage): fix system tests after gaxios migration

[thiyaguk09]

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Fixes #<issue_number_goes_here> 🦕

[gemini-code-assist]

Code Review

This pull request introduces several updates to the storage library, including adding compress: false to file request options, enriching GaxiosError with legacy ApiError properties in StorageTransport, and updating various system tests to improve robustness, compatibility, and error handling. The review feedback highlights a critical issue where a non-existent makeRequest method is called on StorageTransport in a KMS test, as well as potential TypeError risks when accessing nested properties of myBucket.metadata and err.errors without optional chaining.