🐞 Bug report

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Is this a regression?

Yes, the previous version in which this bug was not present was: Angular 12

Description

The reason is the commit introduced in Angular 13 5904afd , now it throws the error, when there is no target

Workaround: thanks to the another commit in Angular 13 51622bd, now I'm able to fix myself the problem and pass a new option target in the 3rd argument of scheduleBuilder() function.

The point is, it would be nice to add a schematics migration in v13 to pass the original target to the calls of scheduleBuilder. Or at least document it in the breaking changes section of the package @angular-devkit/build-angular

🔬 Minimal Reproduction

Using Angular 12, create a custom builder that calls inside: scheduleBuilder('@angular-devkit/build-angular:ng-packagr'). Then upgrade to Angular 13, run your builder and observe the build error: "The builder requires a target".

🔥 Exception or Error

"The builder requires a target"

🌍 Your Environment

Angular CLI: 13.0.1
Node: 16.13.0
Package Manager: yarn 1.22.10
OS: darwin arm64

Angular: 13.0.0
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... platform-server, router, service-worker

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1300.1
@angular-devkit/build-angular   13.0.1
@angular-devkit/core            13.0.1
@angular-devkit/schematics      13.0.1
@angular/cli                    13.0.1
@angular/pwa                    13.0.1
@nguniversal/builders           13.0.0
@nguniversal/express-engine     13.0.0
@schematics/angular             13.0.1
ng-packagr                      13.0.3
rxjs                            6.6.3
typescript                      4.4.4