GET /api/repos/-/jira/pulls issues more than 100 queries per request

Calls to GET /api/repos/-/jira/pulls make a lot of requests, regularly more than 100, and often over 500 (max 2k).

Grafana: https://dashboards.gitlab.net/d/api-rails-controller/api-rails-controller?orgId=1&var-PROMETHEUS_DS=Global&var-action=All&var-controller=Grape&var-environment=gprd&var-stage=main&viewPanel=2155933118

Code: https://gitlab.com/gitlab-org/gitlab/blob/master/lib/api/v3/github.rb