build(docs-infra): add option to run only the doc-gen (#25363)
build(docs-infra): add option to run only the doc-gen (#25363)

This can save time when iterating by not
regenerating the zips and embedded examples.

PR Close #25363

ValtoFrameworks/Angular-2,gdi2290/angular,IgorMinar/angular,IdeaBlade/angular,StephenFluin/angular,shairez/angular,mprobst/angular,filipesilva/angular,vikerman/angular,ValtoFrameworks/Angular-2,kegluneq/angular,juristr/angular,angular-indonesia/angular,vikerman/angular,brandonroberts/angular,manekinekko/angular,IdeaBlade/angular,angular/angular,angular/angular,hansl/angular,mlaval/angular,blesh/angular,sarunint/angular,manekinekko/angular,wKoza/angular,trshafer/angular,snaptech/angular,sarunint/angular,ultrasonicsoft/angular,alxhub/angular,alxhub/angular,blesh/angular,mlaval/angular,hansl/angular,brandonroberts/angular,ultrasonicsoft/angular,ultrasonicsoft/angular,sarunint/angular,wKoza/angular,snaptech/angular,IgorMinar/angular,Toxicable/angular,IgorMinar/angular,angular-indonesia/angular,trshafer/angular,brandonroberts/angular,angular/angular,hansl/angular,brandonroberts/angular,mhevery/angular,gdi2290/angular,juristr/angular,mhevery/angular,gdi2290/angular,vikerman/angular,jasonaden/angular,ocombe/angular,ultrasonicsoft/angular,mlaval/angular,gkalpak/angular,alexeagle/angular,petebacondarwin/angular,trshafer/angular,Brocco/angular,alxhub/angular,ValtoFrameworks/Angular-2,gnomeontherun/angular,matsko/angular,filipesilva/angular,vikerman/angular,mhevery/angular,vikerman/angular,Toxicable/angular,mprobst/angular,kegluneq/angular,IgorMinar/angular,Brocco/angular,snaptech/angular,manekinekko/angular,juristr/angular,jasonaden/angular,StephenFluin/angular,shairez/angular,matsko/angular,mprobst/angular,mhevery/angular,snaptech/angular,trshafer/angular,JiaLiPassion/angular,IgorMinar/angular,hansl/angular,StephenFluin/angular,ocombe/angular,StephenFluin/angular,shairez/angular,matsko/angular,ocombe/angular,petebacondarwin/angular,mhevery/angular,gkalpak/angular,juristr/angular,blesh/angular,sarunint/angular,jasonaden/angular,mhevery/angular,JiaLiPassion/angular,petebacondarwin/angular,juristr/angular,wKoza/angular,jasonaden/angular,vikerman/angular,ocombe/angular,Toxicable/angular,mgechev/angular,alxhub/angular,manekinekko/angular,alxhub/angular,kegluneq/angular,Brocco/angular,petebacondarwin/angular,mlaval/angular,matsko/angular,gdi2290/angular,brandonroberts/angular,alexeagle/angular,matsko/angular,IdeaBlade/angular,ValtoFrameworks/Angular-2,manekinekko/angular,IdeaBlade/angular,alexeagle/angular,snaptech/angular,Brocco/angular,filipesilva/angular,gnomeontherun/angular,petebacondarwin/angular,sarunint/angular,mgechev/angular,alexeagle/angular,juristr/angular,mprobst/angular,JiaLiPassion/angular,alexeagle/angular,ultrasonicsoft/angular,mlaval/angular,filipesilva/angular,gnomeontherun/angular,IgorMinar/angular,blesh/angular,kegluneq/angular,shairez/angular,angular/angular,Toxicable/angular,hansl/angular,brandonroberts/angular,gdi2290/angular,mgechev/angular,shairez/angular,gkalpak/angular,jasonaden/angular,petebacondarwin/angular,angular-indonesia/angular,Toxicable/angular,IdeaBlade/angular,trshafer/angular,hansl/angular,gdi2290/angular,mprobst/angular,Toxicable/angular,sarunint/angular,ultrasonicsoft/angular,wKoza/angular,kegluneq/angular,ocombe/angular,ValtoFrameworks/Angular-2,mgechev/angular,alexeagle/angular,kegluneq/angular,trshafer/angular,filipesilva/angular,jasonaden/angular,gnomeontherun/angular,manekinekko/angular,ocombe/angular,gkalpak/angular,JiaLiPassion/angular,blesh/angular,Brocco/angular,angular-indonesia/angular,wKoza/angular,wKoza/angular,mprobst/angular,Brocco/angular,mgechev/angular,snaptech/angular,StephenFluin/angular