Cannot build from source: ng-packagr@12.0.0 does not support LTS Node version

[josh-hemphill]

Angular DevTools version (required): latest

Description of issue:

Attempting to build from source with the new LTS version of nodejs >v16.10.0 results in installation failing because the version of ng-packagr@12.0.0 is only compatible with node >=12.14.1 <16.0.0.

I checked, and the recent versions of ng-packagr do support >v16.10.0, so it should just be a matter of updating that dependency.

Steps to reproduce:

1. Install Node LTS

2. Clone Repo

3. Run yarn (or any other install method)

Additional details:

The actual errors:

error ng-packagr@12.0.0: The engine "node" is incompatible with this module. Expected version ">=12.14.1 <16.0.0". Got "16.11.0"
error Found incompatible module.

[JimMorrison723]

Merging #963 should solve this issue