build: update cross-repo angular dependencies to v21.2.0-rc.0#3431

angular-robot wants to merge 1 commit intoangular:mainangular/dev-infra:mainfrom

angular-robot:ng-renovate/cross-repo-angular-dependenciesangular-robot/dev-infra:ng-renovate/cross-repo-angular-dependenciesCopy head branch name to clipboard