fixup! build: update cross-repo angular dependencies

Author: josephperrott

.ng-dev/github.mjs

@@ -1,12 +1,13 @@
 /**
  * Github configuration for the ng-dev command. This repository is
  * used as remote for the merge script.
- * 
+ *
  * @type { import("@angular/ng-dev").GithubConfig }
  */
 export const github = {
   owner: 'angular',
   name: 'angular-cli',
   mainBranchName: 'main',
   useNgDevAuthService: true,
+  mergeMode: 'team-only',
 };