ci: use path context

Author: buchdag

.github/workflows/dockerhub.yml

@@ -70,6 +70,7 @@ jobs:
         id: docker_build
         uses: docker/build-push-action@v2
         with:
+          context: .
           build-args: GIT_DESCRIBE=${{ env.GIT_DESCRIBE }} 
           platforms: linux/amd64,linux/arm64,linux/arm/v7
           push: true