build: update setup-rbe.sh script to accept non google.com/angular.io (#36846)
build: update setup-rbe.sh script to accept non google.com/angular.io (#36846)

Previously the setup-rbe.sh script did not allow accounts that did
have domains of angular.io or google.com.  Since we add emails from
other domains into everyone@angular.io, we are unable to be certain
in the script that the account is not actually a member of the
required group.  This change adds the option to choose to continue
with an email account logged in which we cannot verify by domain.

PR Close #36846

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