QOperatingSystemVersion: Add Win11 24H2

Windows 11 24H2 has been publicly released already, which can be
downloaded directly from Microsoft's official website [1].

[1] https://www.microsoft.com/en-us/software-download/windows11

Pick-to: 6.8
Change-Id: I0394e8413c07ec902cadd43bd2fac8a3d4c42c7b
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/corelib/global/qoperatingsystemversion.cpp

@@ -479,6 +479,12 @@ const QOperatingSystemVersionBase QOperatingSystemVersion::Windows11_22H2;
     \since 6.6
  */
 
+/*!
+    \variable QOperatingSystemVersion::Windows11_24H2
+    \brief a version corresponding to Windows 11 Version 24H2 (version 10.0.26100).
+    \since 6.8.1
+ */
+
 /*!
     \variable QOperatingSystemVersion::OSXMavericks
     \brief a version corresponding to OS X Mavericks (version 10.9).

src/corelib/global/qoperatingsystemversion.h

@@ -145,6 +145,7 @@ class QOperatingSystemVersion : public QOperatingSystemVersionBase
     static constexpr QOperatingSystemVersionBase MacOSSequoia { QOperatingSystemVersionBase::MacOS, 15, 0 };
     static constexpr QOperatingSystemVersionBase Android14 { QOperatingSystemVersionBase::Android, 14, 0 };
     static constexpr QOperatingSystemVersionBase Windows11_23H2 { QOperatingSystemVersionBase::Windows, 10, 0, 22631 };
+    static constexpr QOperatingSystemVersionBase Windows11_24H2 { QOperatingSystemVersionBase::Windows, 10, 0, 26100 };
 
 #if QT_VERSION < QT_VERSION_CHECK(7, 0, 0) && !defined(QT_BOOTSTRAPPED) && !defined(Q_QDOC)
 };