Fix analytics test warnings

[hsubox76]

Analytics test logs had a lot of spam with warnings that the app is already deleted. This actually didn't come from a call to deleteApp() but a reference to app.name (which is actually a getter function) in a heartbeatService method. This is because some of the analytics tests use a full FirebaseApp initialized with initializeApp instead of a stub, which causes heartbeatService to also be initialized and start running its lifecycle methods.

The solution is to replace the heartbeatService component in the app used for testing, a fix which was already done in AppCheck, probably for the same problem https://github.com/firebase/firebase-js-sdk/blob/main/packages/app-check/test/util.ts#L70 Analytics tests don't need to test the heartbeatService so it makes sense to stub it out.

[changeset-bot]

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Latest commit: 0a03d42

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[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (d6fa588) and merge commit (2a7f1c0).

Test Logs

• Base (d6fa588): https://github.com/firebase/firebase-js-sdk/actions/runs/11115498888
• Merge (2a7f1c0): https://github.com/firebase/firebase-js-sdk/actions/runs/11131445396

1. https://storage.googleapis.com/firebase-sdk-metric-reports/6tj0xoBRTE.html

[google-oss-bot]

Size Analysis Report ¹

Affected Products

No changes between base commit (d6fa588) and merge commit (2a7f1c0).

Test Logs

• Base (d6fa588): https://github.com/firebase/firebase-js-sdk/actions/runs/11115498888
• Merge (2a7f1c0): https://github.com/firebase/firebase-js-sdk/actions/runs/11131445396

1. https://storage.googleapis.com/firebase-sdk-metric-reports/L1KbMDpgju.html