DEV: Run Ember tests daily with plugins (#14261)

.github/workflows/ember.yml

@@ -5,6 +5,8 @@ on:
   push:
     branches:
       - main
+  schedule:
+    - cron:  '0 0 * * *'
 
 jobs:
   build:
@@ -37,6 +39,10 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-yarn-
 
+      - name: Official Plugins Install
+        if: ${{ github.event_name == 'cron' }}
+        run: sudo -E -u discourse -H bundle exec rake plugin:install_all_official
+
       - name: Yarn install
         working-directory: ./app/assets/javascripts/discourse
         run: yarn install