test(zone.js): sets rollup_bundle to use the --silent flag in karma tests (#35881)
test(zone.js): sets rollup_bundle to use the --silent flag in karma tests (#35881)

PR Close #35881

brandonroberts/angular,mgechev/angular,angular/angular,snaptech/angular,StephenFluin/angular,gkalpak/angular,brandonroberts/angular,gdi2290/angular,manekinekko/angular,alxhub/angular,filipesilva/angular,JiaLiPassion/angular,StephenFluin/angular,manekinekko/angular,Toxicable/angular,Toxicable/angular,shairez/angular,ocombe/angular,matsko/angular,ocombe/angular,mgechev/angular,alxhub/angular,manekinekko/angular,StephenFluin/angular,matsko/angular,IdeaBlade/angular,JiaLiPassion/angular,IdeaBlade/angular,Toxicable/angular,Toxicable/angular,JiaLiPassion/angular,filipesilva/angular,manekinekko/angular,manekinekko/angular,Toxicable/angular,gnomeontherun/angular,IdeaBlade/angular,brandonroberts/angular,snaptech/angular,gdi2290/angular,gkalpak/angular,wKoza/angular,blesh/angular,filipesilva/angular,shairez/angular,wKoza/angular,alxhub/angular,gkalpak/angular,filipesilva/angular,gdi2290/angular,mgechev/angular,snaptech/angular,matsko/angular,matsko/angular,wKoza/angular,ocombe/angular,IdeaBlade/angular,snaptech/angular,shairez/angular,angular/angular,ocombe/angular,brandonroberts/angular,ocombe/angular,ocombe/angular,gdi2290/angular,blesh/angular,matsko/angular,StephenFluin/angular,shairez/angular,gnomeontherun/angular,wKoza/angular,gdi2290/angular,angular-indonesia/angular,snaptech/angular,wKoza/angular,mgechev/angular,angular/angular,brandonroberts/angular,alxhub/angular,JiaLiPassion/angular,blesh/angular,angular-indonesia/angular,shairez/angular,gkalpak/angular,angular-indonesia/angular,snaptech/angular,gdi2290/angular,brandonroberts/angular,StephenFluin/angular,alxhub/angular,manekinekko/angular,wKoza/angular,blesh/angular,gnomeontherun/angular,filipesilva/angular,mgechev/angular,angular/angular,blesh/angular,angular-indonesia/angular,IdeaBlade/angular,Toxicable/angular,gnomeontherun/angular