README Updates to steps and required tool versions

[DellaBitta]

Discussion

Update the readme to reflect currently required tool versions (node, yarn and jdk) and gsutil auth steps.

Testing

N/A. Notes stem from setting up the SDK to build on macOS for the first time.

API Changes

N/A

[changeset-bot]

⚠️ No Changeset found

Latest commit: 8cce889

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[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (f5aec7b) and merge commit (72d59ad).

Test Logs

• Base (f5aec7b): https://github.com/firebase/firebase-js-sdk/actions/runs/4760372343
• Merge (72d59ad): https://github.com/firebase/firebase-js-sdk/actions/runs/4780265238

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

[google-oss-bot]

Size Analysis Report ¹

Affected Products

No changes between base commit (f5aec7b) and merge commit (72d59ad).

Test Logs

• Base (f5aec7b): https://github.com/firebase/firebase-js-sdk/actions/runs/4760372343
• Merge (72d59ad): https://github.com/firebase/firebase-js-sdk/actions/runs/4780265238

1. https://storage.googleapis.com/firebase-sdk-metric-reports/rbJthE934M.html

[dwyfrequency]

LGTM

[dwyfrequency]

LGTM