Qt 6.8 has apparently changed from a *BEFORE to an *UP_TO naming scheme
in 816071d44012. As we need also pre-6.8 builds we better have both.
After talking the change's author it seems to be ok to use the same
numbers.
Change-Id: I451dc9ac9c842405f5f36a04079b4284a42a2378
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>