Refactor demo dependencies installation step

Simplified the installation of demo dependencies by removing unnecessary directory change.

Author: ZizzX

.github/workflows/deploy-demo.yml

@@ -30,9 +30,7 @@ jobs:
         run: npm run build
 
       - name: Install Demo Dependencies
-        run: |
-          cd examples/demo
-          npm ci
+        run: npm ci
 
       - name: Build Demo
         run: |