Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, ecmwf-actions/build-package@v2, codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.