angular: drop jest-preset-angular from dependabot group (#28115)

Author: mshima

.github/dependabot.yml

@@ -79,7 +79,6 @@ updates:
           - '@angular-devkit/*'
           - '@fortawesome/angular-fontawesome'
           - '@ng-bootstrap/*'
-          - 'jest-preset-angular'
           - 'ngx-cookie-service'
           - 'ngx-infinite-scroll'
           - 'typescript'