Fix: UpdateData<T> to allow indexed types or Record for T.

[MarkDuckworth]

Backporting additional UpdateData improvements from nodejs-firestore.

Fixes: #7813

[changeset-bot]

🦋 Changeset detected

Latest commit: 8b5043f

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@firebase/firestore	Patch
firebase	Patch
@firebase/firestore-compat	Patch

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[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (f854abe) and merge commit (3c95541).

Test Logs

• Base (f854abe): https://github.com/firebase/firebase-js-sdk/actions/runs/7254091223
• Merge (3c95541): https://github.com/firebase/firebase-js-sdk/actions/runs/7269298173

1. https://storage.googleapis.com/firebase-sdk-metric-reports/YQ6oRqWUzr.html

[google-oss-bot]

Size Analysis Report ¹

Affected Products

No changes between base commit (f854abe) and merge commit (3c95541).

Test Logs

• Base (f854abe): https://github.com/firebase/firebase-js-sdk/actions/runs/7254091223
• Merge (3c95541): https://github.com/firebase/firebase-js-sdk/actions/runs/7269298173

1. https://storage.googleapis.com/firebase-sdk-metric-reports/SRXi0XirCd.html

[evilDave]

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[J4cku]

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