Merge branch 'kassio/work-items-user-preferences-graphql' into 'master'

Add GraphQL for WorkItems::UserPreference

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/176975



Merged-by: Kassio Borges <kborges@gitlab.com>
Approved-by: Alex Buijs <abuijs@gitlab.com>
Approved-by: Nicolas Dular <ndular@gitlab.com>
Approved-by: Fabien Catteau <fcatteau@gitlab.com>
Reviewed-by: Jarka Košanová <jarka@gitlab.com>
Reviewed-by: Kassio Borges <kborges@gitlab.com>
Reviewed-by: Fabien Catteau <fcatteau@gitlab.com>
Reviewed-by: Nicolas Dular <ndular@gitlab.com>
Reviewed-by: Eugenia Grieff <egrieff@gitlab.com>
Reviewed-by: mo khan <mo@mokhan.ca>
Co-authored-by: Kassio Borges <kassioborgesm@gmail.com>