test(asset): add sleep retries to prevent RESOURCE_EXHAUSTED quota errors

[angelcaamal]

Description

Fixes Internal: b/514339354

This PR resolves the persistent CI/CD pipeline failures caused by the following gRPC error:
Error: 8 RESOURCE_EXHAUSTED: Quota exceeded for quota metric 'ListAssets Requests' and limit 'ListAssets Requests per minute' of service 'cloudasset.googleapis.com'

The failure occurs because concurrent test executions within the shared Google Cloud project environment frequently exceed the organization's API rate limits.

Changes Made

• Increased the initial waitMs delay from 2 seconds to 60 seconds (1 minute) inside the test retry loop.
• Maintained the existing exponential backoff logic and retry structure as originally designed.

Why a 1-Minute Initial Wait is Necessary

The cloudasset.googleapis.com quota window resets on a per-minute basis. By introducing a full 60-second sleep before the very first execution attempt, we guarantee that the API's rate-limiting bucket has sufficient time to refresh and clear any traffic spikes caused by other concurrent pipelines. This prevents the RESOURCE_EXHAUSTED error from breaking the build and allows the test to proceed reliably.

Note: Before submitting a pull request, please open an issue for discussion if you are not associated with Google.

Checklist

• I have followed guidelines from CONTRIBUTING.MD and Samples Style Guide
• Tests pass: npm test (see Testing)
• Lint pass: npm run lint (see Style)
• Required CI tests pass (see CI testing)
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• This pull request is from a branch created directly off of GoogleCloudPlatform/nodejs-docs-samples. Not a fork.
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new sample directory, and I created GitHub Actions workflow for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

Note: Any check with (dev), (experimental), or (legacy) can be ignored and should not block your PR from merging (see CI testing).

[gemini-code-assist]

Code Review

This pull request introduces a retry mechanism with exponential backoff to the 'should list assets successfully' test in asset.test.js. The test now attempts to list assets up to three times, incorporating a sleep period that doubles with each retry to improve test stability. I have no feedback to provide as there were no review comments to evaluate.

[XrossFox]

LGTM

[Kef131]

LGTM