Merge branch 'minac_lazy_association_loader' into 'master'

Implement lazy association loader

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/115240



Merged-by: Luke Duncalfe <lduncalfe@gitlab.com>
Approved-by: Marcos Rocha <mrocha@gitlab.com>
Approved-by: Luke Duncalfe <lduncalfe@gitlab.com>
Reviewed-by: Mayra Cabrera <mcabrera@gitlab.com>
Reviewed-by: Luke Duncalfe <lduncalfe@gitlab.com>
Reviewed-by: Adam Hegyi <ahegyi@gitlab.com>
Reviewed-by: Mehmet Emin INAC <minac@gitlab.com>
Reviewed-by: Rajendra Kadam <rkadam@gitlab.com>
Reviewed-by: Prabakaran Murugesan <pmurugesan@gitlab.com>
Co-authored-by: Mehmet Emin INAC <minac@gitlab.com>