Include climits explicitly instead of relying on transitive includes

Pick-to: 6.8 6.5
Change-Id: Ib55b337aa6e0a93c7ac7ee9bf492784cc81808d7
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
(cherry picked from commit 158f2c95c8b69f586bd1155fc5993bdb61f76e77)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

src/corelib/thread/qfutureinterface.cpp

@@ -12,6 +12,8 @@
 #include <private/qthreadpool_p.h>
 #include <private/qobject_p.h>
 
+#include <climits> // For INT_MAX
+
 // GCC 12 gets confused about QFutureInterfaceBase::state, for some non-obvious
 // reason
 //  warning: ‘unsigned int __atomic_or_fetch_4(volatile void*, unsigned int, int)’ writing 4 bytes into a region of size 0 overflows the destination [-Wstringop-overflow=]

src/corelib/thread/qthreadpool.cpp

@@ -9,6 +9,7 @@
 #include <QtCore/qpointer.h>
 
 #include <algorithm>
+#include <climits> // For INT_MAX
 #include <memory>
 
 using namespace std::chrono_literals;

src/plugins/platforms/vkkhrdisplay/qvkkhrdisplayvulkaninstance.h

@@ -18,6 +18,8 @@
 #include <QtGui/private/qbasicvulkanplatforminstance_p.h>
 #include <QtCore/qsize.h>
 
+#include <climits> // For UINT_MAX
+
 QT_BEGIN_NAMESPACE
 
 class QVkKhrDisplayVulkanInstance : public QBasicPlatformVulkanInstance