v12.0.0-rc.3

Commits

@angular/cli (12.0.0-rc.3)
Commit	Description	Notes
	propagate update's force option to package managers
	allow unsetting config when value is `undefined`
	allow config object to be of JSON.
	disallow additional properties in builders sections

---

Special Thanks

Alan Agius, Charles Lyding, Joey Perrott