Fix workflow.

Author: rangoku

.github/workflows/containers.yaml

@@ -27,6 +27,6 @@ jobs:
       - name: Build and push frontend
         uses: docker/build-push-action@v5
         with:
-          context: ./packages/frontend
+          context: ./packages/dashboard
           push: true
           tags: ${{ secrets.DOCKER_HUB_USERNAME }}/frontend:latest