Bump Node to 24.19.0 and enforce npm >= 11.10.0 toolchain

[NicolasBonet]

Details

Prep for rolling out npm's min-release-age cooldown (https://github.com/Expensify/Expensify/issues/636594). That setting requires npm >= 11.10.0, so this bumps and enforces the toolchain first:

• .nvmrc: 24.11.0 -> 24.19.0
• package.json: add devEngines requiring node >= 24.19.0 / npm >= 11.10.0 (same block as expensify-common). Only applies to contributors, not consumers of the published package.
• .circleci/config.yml: bump the executor image from circleci/node:16 to cimg/node:24.19.0 to match .nvmrc. CircleCI no longer seems to run on this repo, so happy to delete the file instead if preferred.

No .npmrc or min-release-age yet — that's a follow-up.

Fixed Issues

For https://github.com/Expensify/Expensify/issues/678052

Tests

1. nvm use 24.19.0 && npm ci succeeds
2. npm run lint and npm test pass
3. nvm use 24.11.0 && npm ci --ignore-scripts fails with EBADDEVENGINES

[github-actions]

All contributors have signed the CLA ✍️ ✅
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[NicolasBonet]

I have read the CLA Document and I hereby sign the CLA

[os-botify]

🚀 Published to npm in 1.0.16 🎉