To avoid error 'too many path components' when building Qt on Windows.
Pick-to: 6.2
Task-number: QTBUG-95286
Change-Id: I122cfddc8c19201f4c04fde94d051c5e1278c040
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Simo Fält <simo.falt@qt.io>