ci: keep job alive when yarn request takes more than 10 minutes (#28458)
ci: keep job alive when yarn request takes more than 10 minutes (#28458)

Occasionally, yarn's requests take more than 10 minutes to
complete/fail, by which time CircleCI jobs due to no output.

This commit works around the issue by periodically printing something to
stdout.

PR Close #28458

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