Improve the integration test coverage for online vs offline comparisons.

[ehsannas]

#no-changelog

[changeset-bot]

⚠️ No Changeset found

Latest commit: 9add7c8

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[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (9952dbc) and merge commit (9d12961).

Test Logs

• Base (9952dbc): https://github.com/firebase/firebase-js-sdk/actions/runs/14646189506
• Merge (9d12961): https://github.com/firebase/firebase-js-sdk/actions/runs/14652049390

1. https://storage.googleapis.com/firebase-sdk-metric-reports/hFksmB8tnq.html

[google-oss-bot]

Size Analysis Report ¹

Affected Products

No changes between base commit (9952dbc) and merge commit (9d12961).

Test Logs

• Base (9952dbc): https://github.com/firebase/firebase-js-sdk/actions/runs/14646189506
• Merge (9d12961): https://github.com/firebase/firebase-js-sdk/actions/runs/14652049390

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

[milaGGL]

LGTM