MIEQ: add negative test cases

[milaGGL]

MIEQ negative test cases are supported by new emulator version:firebase/firebase-tools#6354

[changeset-bot]

⚠️ No Changeset found

Latest commit: 149e78d

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[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (8283a55) and merge commit (29d58df).

Test Logs

• Base (8283a55): https://github.com/firebase/firebase-js-sdk/actions/runs/6509336308
• Merge (29d58df): https://github.com/firebase/firebase-js-sdk/actions/runs/6509358165

1. https://storage.googleapis.com/firebase-sdk-metric-reports/uQvV1qdWCY.html

[google-oss-bot]

Size Analysis Report ¹

This report is too large (1,880,847 characters) to be displayed here in a GitHub comment. Please use the below link to see the full report on Google Cloud Storage.

Test Logs

• Merge (29d58df): https://github.com/firebase/firebase-js-sdk/actions/runs/6509358165

1. https://storage.googleapis.com/firebase-sdk-metric-reports/DlPqD1f1k2.html