chore: fix docker build

Author: zz-jason

.github/workflows/docker-publish.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Build and push
         uses: docker/build-push-action@v5
         with:
-          context: docker
-          file: ./Dockerfile
+          context: ./docker
+          file: ./docker/Dockerfile
           push: true
           tags: zzjason/leanstore-dev:latest