Checks API creating new Check Run can not set "details_url"

Using the Create a check run API I can not seem to set the details_url. Note that the creation of the new Check Run is running in the context of a GitHub Workflow. All of the other parameters are settable.

The documentation states - The URL of the integrator’s site that has the full details of the check. If the integrator does not provide this, then the homepage of the GitHub app is used.

Refer to the following repo