Bump minimum Node to v20

[mcmire]

v18 was EOL'd in April 2025. The supported versions of Node as defined in package.json and tested in the CI matrix is now 20.x, 22.x, and 24.x.

Examples

Both Extension and Mobile are using at least Node 20.x for local development and building.

• https://github.com/MetaMask/metamask-extension/blob/0327edefe61e6f45a376949765187f711932650e/.nvmrc
• https://github.com/MetaMask/metamask-mobile/blob/e9ba03cf26cbf261493991a5b2e8d37c90fad0fe/.nvmrc

---

Note

Raise minimum Node to 20 and update CI to test 20.x/22.x/24.x (build/lint on 24.x), aligning engines and constraints.

• CI:
  • Update Node matrices: prepare, test, and compatibility-test run on 20.x, 22.x, 24.x; build and lint run on 24.x.
  • Change cache-node-modules predicate to target 24.x.
• Package metadata:
  • Set engines.node to ^20 || ^22 || >=24 in package.json.
  • Update yarn.config.cjs constraint to set engines.node to ^20 || ^22 || >=24.

^{Written by Cursor Bugbot for commit cf34990. This will update automatically on new commits. Configure here.}

[mcmire]

We ought to support all past versions of 20.x and 22.x, not just whichever happens to be the current version right now. This change also simplifies the process for updating these ranges the next time around (no need to look up the current version, just bump all the numbers).