Fix CI

Author: MingxuanGame

.github/workflows/push-to-github-packages.yml

@@ -45,8 +45,8 @@ jobs:
       - name: Build and push Docker image
         uses: docker/build-push-action@v5
         with:
-          context: ./osu.Server.Spectator
-          file: ./osu.Server.Spectator/Dockerfile
+          context: .
+          file: ./Dockerfile
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           platforms: linux/amd64,linux/arm64