test(ai): update vertex ai live model name

[dlarocque]

Replaces the deprecated gemini-2.0-flash-exp with gemini-2.0-flash-live-preview-04-09, and enables the live api tests against vertex ai.

[changeset-bot]

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Latest commit: e615c42

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[gemini-code-assist]

Summary of Changes

Hello @dlarocque, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on updating the configuration for Vertex AI by replacing an outdated Gemini model identifier with its current live preview counterpart. A significant part of this change involves activating the corresponding live API integration tests for Vertex AI, which were previously skipped. This ensures that the system's interaction with the updated live models is thoroughly validated.

Highlights

• Vertex AI Model Update: The deprecated gemini-2.0-flash-exp model name has been replaced with the current gemini-2.0-flash-live-preview-04-09 for Vertex AI configurations.
• Live API Test Enablement: Live API tests for Vertex AI have been enabled by removing the conditional skip, ensuring that the integration tests now run against the updated live models.

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[gemini-code-assist]

Code Review

The pull request successfully updates the Vertex AI live model name and enables the corresponding API tests, aligning with the stated objectives. The changes are straightforward and directly address the PR's intent.

[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (5c35f51) and merge commit (23fd334).

Test Logs

• Base (5c35f51): https://github.com/firebase/firebase-js-sdk/actions/runs/19307243390
• Merge (23fd334): https://github.com/firebase/firebase-js-sdk/actions/runs/19311017420

1. https://storage.googleapis.com/firebase-sdk-metric-reports/bF7diJ3kxN.html

[google-oss-bot]

Size Analysis Report ¹

Affected Products

No changes between base commit (5c35f51) and merge commit (23fd334).

Test Logs

• Base (5c35f51): https://github.com/firebase/firebase-js-sdk/actions/runs/19307243390
• Merge (23fd334): https://github.com/firebase/firebase-js-sdk/actions/runs/19311017420

1. https://storage.googleapis.com/firebase-sdk-metric-reports/noJjVqDYXB.html