Added param include_ancestors and default value to true

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/96656



Merged-by: Krasimir Angelov <kangelov@gitlab.com>
Approved-by: Manoj M J <mmj@gitlab.com>
Approved-by: Alex Pooley <apooley@gitlab.com>
Approved-by: Dominic Bauer <dbauer@gitlab.com>
Approved-by: Krasimir Angelov <kangelov@gitlab.com>
Co-authored-by: Hitesh Raghuvanshi <hraghuvanshi@gitlab.com>
Co-authored-by: Alex Pooley <apooley@gitlab.com>