Perhaps this, but the reverse?
Unfortunately, Make doesn’t have a repost module for LinkedIn yet.
See if such an endpoint exist in the LinkedIn Developer API reference. If it exists, you can integrate the endpoint in Make using the app’s universal module (Make an API call) or generic HTTP “Make a request” module.
You can also suggest for it to be made in the Idea Exchange. However, do search for a similar request (and also upvote), just in case it has already been suggested to avoid duplicates.
Hope this helps! Let me know if there are any further questions or issues.
— @samliew