Alert user when they're using functions + unsupported Node versions

Which problem is this feature request solving?

When my project was using new Node 18 APIs:

• functions would work locally using the CLI
• deploys would fail

This is because AWS doesn’t support Node 18 (at the moment of running the CLI).

Downgrading to Node 16 fixed it.

Describe the solution you'd like

A great developer experience would have been to know about this version incompatibility prior to deploying.

Perhaps the CLI could tell users when they’re using edge functions in conjunction with versions of Node.js that aren’t supported?

For example:

> ntl dev

  Running Netlify Functions with an unsupported version of Node.js (18) and may not deploy as expected.
  Consider using a version of Node.js listed in https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/edge-functions-restrictions.html#lambda-at-edge-function-restrictions
  (To hide this message... /* provide way to dismiss the message for this project? */)

Pull request (optional)

• I can submit a pull request.

Start at the ntl dev flow and identify how edge functions and the project's Node.js version are detected. Confirm the AWS-supported versions in the linked Lambda@Edge restrictions documentation, then define the warning behavior and verify that it appears before deployment when an unsupported version is used.