Loop through the pages to get all the comments

If I am right, the script does not override the "per_page" argument and does not loop through all the comments so we actually only get the first 30 comments of a pull request.

It would be great that the script does loop over all the comments.

Read the script's GitHub pull-request comment-fetching entry point and inspect how it requests comments and handles pagination. Verify the behavior with a pull request containing more than one page of comments; done means the script retrieves all comments rather than only the first 30.

Written by the indexing model from the issue text.