Update the statement expressing Angular's supported versions of Node.js. Previously, we stated
that the `current` version of Node.js was supported, however Node.js's `current` version maps
more closely to what we would term a `next` branch and is not expected meant for usage with
production applications. This intention is stated on Node.js Releases page:
> Production applications should only use Active LTS or Maintenance LTS releases.
PR Close#41820