Update docker-image.yml

Author: sakomws

.github/workflows/docker-image.yml

@@ -36,7 +36,7 @@ jobs:
       - name: Build and push Docker image
         uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
         with:
-          context: .
+          context: ./applications/hello-world/app
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}