fix: 🐛 fix build step

.github/workflows/ember-gh-pages.yml

@@ -41,9 +41,7 @@ jobs:
         with:
           node-version: '16.x'
       - run: yarn install
-      - run:
-        - cd ./ui/admin
-        - yarn build:development
+      - run: cd ./ui/admin && yarn build:development
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v1
         with: