Merge branch '428742-add-group-argument-to-users-graphql-query' into 'master'

Add group_id argument to GraphQL Query.users schema

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/137647



Merged-by: Dzmitry Meshcharakou <12459192-dmeshcharakou@users.noreply.gitlab.com>
Approved-by: Dzmitry Meshcharakou <12459192-dmeshcharakou@users.noreply.gitlab.com>
Approved-by: Matt Kasa <mkasa@gitlab.com>
Reviewed-by: Dzmitry Meshcharakou <12459192-dmeshcharakou@users.noreply.gitlab.com>
Reviewed-by: Patrick Cyiza <jpcyiza@gitlab.com>
Co-authored-by: Patrick Cyiza <jpcyiza@gitlab.com>