Seems like PullRequest create_comment (create_review_comment) is outdated according to https://docs.github.com/en/rest/pulls/comments?apiVersion=2022-11-28#create-a-review-comment-for-a-pull-request (for instance, the subject_type option or position -> line)
I can open a PR from my forked version--looking to see if it's relevant or someone is already working on it.