fix(extension): use compatible Node version in workflows

[lcomplete]

Summary

• Update extension build and release workflows from Node.js 20.10.0 to 20.19.0.
• Satisfy @vitejs/plugin-react 6.x engine requirement (^20.19.0 || >=22.12.0).

Verification

• Inspected git diff HEAD before committing.
• Confirmed only the two extension workflow files were included.
• Pushed commit 0bb815a31a9f25353641a8b10b65622966026e88 to origin/dev.

[augmentcode]

🤖 Augment PR Summary

Summary: Updates the browser extension build/release GitHub Actions workflows to use Node.js 20.19.0.

Why: Aligns CI with @vitejs/plugin-react 6.x engine requirements (^20.19.0 || >=22.12.0) to prevent workflow failures due to incompatible Node versions.

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[augmentcode]

.github/workflows/extension-build.yml:18 — Since this step is being updated, note that actions/setup-node@v3 is the Node 16–runtime variant and can emit deprecation warnings / be more likely to break as GitHub Actions drops older runtimes; consider moving to actions/setup-node@v4+ for the same node-version input.

Severity: medium

Other Locations

• .github/workflows/extension-release.yml:64

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