buildx failed with: ERROR: failed to solve: failed to resolve source metadata for docker.io/library/spack-environment:latest: pull access denied, repository does not exist or may require authorization: server message: insufficient_scope: authorization failed

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, docker/setup-qemu-action@v2, docker/setup-buildx-action@v2, docker/build-push-action@v4. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.