R CMD check found ERRORs

there is no package called 'future.callr'

Process completed with exit code 1.

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: r-lib/actions/setup-pandoc@v2, r-lib/actions/setup-r@v2, actions/cache@v3, actions/upload-artifact@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

'::' or ':::' import not declared from: ‘future.callr’