build: fix api guardian path for windows (#26888)
build: fix api guardian path for windows (#26888)

At the moment, `path.posix.relative` will break paths in windows as it will return something like
```
Error: Source file "../C:/users/alag/_bazel_alag/3tbqurya/execroot/angular/bazel-out/x64_windows-fastbuild/bin/packages/core/core.d.ts" not found
```

PR Close #26888

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