Let me limit the results for Get-GitHubPullRequest

[Martin Hinshelwood nkdAgility.com (MrHinsh)]

The GitHub API has pagination controls for this and I would like to pass them to this method so that I can return just the first page of 10 items... rather than the 300+ PR's that are in my system.

https://docs.github.com/en/rest/pulls/pulls?apiVersion=2022-11-28#list-pull-requests