update groupedbar_compact draw

Change-Id: Id00bcd45faa3d9e82d3ed23843f5c4320bfa8f79
Reviewed-on: https://gerrit.libreoffice.org/65135
Tested-by: Jenkins
Reviewed-by: andreas_kainz <kainz.a@gmail.com>
(cherry picked from commit 744c82af)
Reviewed-on: https://gerrit.libreoffice.org/65138