Add integration tests for rCE ENFORCE

[NhienLam]

Add integration tests for reCAPTCHA Enterprise. These test run against real backend. The following rCE config is configured for the CI project:

"phoneEnforcementState": "ENFORCE",
"useSmsBotScore": true,
"useSmsTollFraudProtection": true

[changeset-bot]

⚠️ No Changeset found

Latest commit: ba52293

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[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (42e4814) and merge commit (20983eb).

Test Logs

• Base (42e4814): https://github.com/firebase/firebase-js-sdk/actions/runs/10864891632
• Merge (20983eb): https://github.com/firebase/firebase-js-sdk/actions/runs/11063128471

1. https://storage.googleapis.com/firebase-sdk-metric-reports/c5A6jhOKHC.html

[google-oss-bot]

Size Analysis Report ¹

Affected Products

No changes between base commit (42e4814) and merge commit (20983eb).

Test Logs

• Base (42e4814): https://github.com/firebase/firebase-js-sdk/actions/runs/10864891632
• Merge (20983eb): https://github.com/firebase/firebase-js-sdk/actions/runs/11063128471

1. https://storage.googleapis.com/firebase-sdk-metric-reports/fnfUTfAU5T.html

[Xiaoshouzi-gh]

Thank you Ricky LGTM