Update `engines` to Node.js 22.12 LTS

[rtritto]

Pre-flight checklist

• I have read the contribution documentation for this project.
• I agree to follow the code of conduct that this project uses.
• I have searched the issue tracker for a bug that matches the one I want to file, without success.

Electron Forge version

7.4.0

Electron version

30.1.0

Operating system

No response

Last known working Electron Forge version

No response

Expected behavior

All package.json files:

{
  "engines": {
    "node": ">=20 || >=22"
  },
}

Actual behavior

All package.json files:

{
  "engines": {
    "node": ">= 16.4.0"
  },
}

Steps to reproduce

No response

Additional information

Node.js v16 security support was finished on the 2023-09-11.

Current End Of Life Node.js

[erickzhao]

Hey, this is going to be done as part of https://www.electronjs.org/blog/ecosystem-node-22