Fix formatting for auth files.

[prameshj]

These currently show up in the diff when running yarn format. Sending a separate PR so they are not showing up as unrelated changes in other PRs.

[changeset-bot]

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Latest commit: 74fc902

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[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (ca1b0c8) and merge commit (1377fda).

Test Logs

• Base (ca1b0c8): https://github.com/firebase/firebase-js-sdk/actions/runs/2951140571
• Merge (1377fda): https://github.com/firebase/firebase-js-sdk/actions/runs/2959846052

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

[google-oss-bot]

Size Analysis Report ¹

Affected Products

No changes between base commit (ca1b0c8) and merge commit (1377fda).

Test Logs

• Base (ca1b0c8): https://github.com/firebase/firebase-js-sdk/actions/runs/2951140571
• Merge (1377fda): https://github.com/firebase/firebase-js-sdk/actions/runs/2959846052

1. https://storage.googleapis.com/firebase-sdk-metric-reports/w4Yf7QAkcB.html

[prameshj]

Ignoring firestore test failures above, since those are connectivity-related and this PR does not change any firestore code.