dev-qt/qtbase: add missing header needed for kwin + libc++

Please make sure update to this version first (manually if need be)
given kwin does not explicitly requests this revision.

Closes: https://bugs.gentoo.org/949629
Signed-off-by: Ionen Wolkens <ionen@gentoo.org>

dev-qt/qtbase/files/qtbase-6.8.2-QTBUG-133808.patch

@@ -0,0 +1,12 @@
+https://bugs.gentoo.org/949629
+https://bugreports.qt.io/browse/QTBUG-133808
+https://codereview.qt-project.org/c/qt/qtbase/+/624870
+--- a/src/corelib/global/qcompare_impl.h
++++ b/src/corelib/global/qcompare_impl.h
+@@ -13,4 +13,6 @@
+ #include <QtCore/qcompilerdetection.h>
+ 
++#include <type_traits>
++
+ QT_BEGIN_NAMESPACE
+ 

dev-qt/qtbase/qtbase-6.8.2-r2.ebuild

@@ -147,6 +147,7 @@ PATCHES=(
 	"${FILESDIR}"/${PN}-6.6.3-gcc14-avx512fp16.patch
 	"${FILESDIR}"/${PN}-6.8.0-qcontiguouscache.patch
 	"${FILESDIR}"/${P}-QTBUG-133500.patch
+	"${FILESDIR}"/${P}-QTBUG-133808.patch
 )
 
 src_prepare() {