List thread participants

Fetch the participants for a thread with paging.

Endpoints

GET /api/v1/teams/{team_slug}/repos/{repo_slug}/threads/{number}/participants
GET /api/v1/users/{username}/repos/{repo_slug}/threads/{number}/participants

Success

200 OK with a paged response containing participant_username, participant_rank, and participant_count. Results are ordered by first participation in the thread, with the thread creator first.