Use QCss::Declaration::brushValues to parse the values into a list. This
will not only lead to correctly parsing the values, but also prevent an
an assertion from firing when ValueExtractor::extractBorder is called.
Fixes: QTBUG-126381
Pick-to: 6.7 6.5 6.2
Change-Id: Ic6f3d722ffe0d72dcb5faa9916a23c804211ce49
Reviewed-by: Santhosh Kumar <santhosh.kumar.selvaraj@qt.io>
(cherry picked from commit a37ca7c85933979351d99f1bb22191763a78de46)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
28b9a653ea