fix(workflows): docker image path

Author: auguwu

.github/workflows/release-snapshot.yml

@@ -83,7 +83,7 @@ jobs:
         uses: docker/build-push-action@v2
         with:
           context: .
-          file: ./docker/amd64.Dockerfile
+          file: ./Dockerfile
           platforms: linux/amd64
           push: true
           cache-from: type=local,src=/tmp/.buildx/cache

.github/workflows/release.yml

@@ -82,7 +82,7 @@ jobs:
         uses: docker/build-push-action@v2
         with:
           context: .
-          file: ./docker/amd64.Dockerfile
+          file: ./Dockerfile
           platforms: linux/amd64
           push: true
           cache-from: type=local,src=/tmp/.buildx/cache