Update docker publish context

Author: jorgensd

.github/workflows/publish_docker.yml

@@ -44,9 +44,9 @@ jobs:
       - name: Build and push Docker image
         uses: docker/build-push-action@v3
         with:
-          context: .
+          context: ./docker
           push: true
           file: docker/Dockerfile
           platforms: linux/amd64,linux/arm64
           tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
+          labels: ${{ steps.meta.outputs.labels }}