buildx failed with: ERROR: failed to solve: process "/bin/sh -c add-apt-repository \"deb http://archive.ubuntu.com/ubuntu xenial universe\" && add-apt-repository \"deb http://archive.ubuntu.com/ubuntu xenial main\" && add-apt-repository \"deb http://archive.ubuntu.com/ubuntu xenial-security main\" && apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys CE7709D068DB5E88 && add-apt-repository \"deb https://repo.sovrin.org/deb xenial stable\"" did not complete successfully: exit code: 2

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, docker/setup-buildx-action@v2, actions/cache@v3, docker/build-push-action@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.