When the repository is checked out on a commit instead of a branch, the 'base' input must be supplied.

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: peter-evans/create-pull-request@v4. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.