Bump webpack-dev-server and @angular-devkit/build-angular in /exercises/angular/3a-pipes/problem#928

dependabot[bot] wants to merge 1 commit intomainbitovi/academy:mainfrom

dependabot/npm_and_yarn/exercises/angular/3a-pipes/problem/multi-5c8528cdccbitovi/academy:dependabot/npm_and_yarn/exercises/angular/3a-pipes/problem/multi-5c8528cdccCopy head branch name to clipboard