QDataStream:: bump version

It is required to update the serialization of QGeoPolygon
in QtPositioning.

Need to adjust tst_qdatastream as well.

Task-number: QTBUG-135967
Change-Id: I81bf1c011717d5ecd92fd6c81136053b4f06bf49
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Mate Barany <mate.barany@qt.io>

src/corelib/serialization/qdatastream.h

@@ -90,7 +90,7 @@ public:
         Qt_6_7 = 22,
         Qt_6_8 = Qt_6_7,
         Qt_6_9 = Qt_6_7,
-        Qt_6_10 = Qt_6_7,
+        Qt_6_10 = 23,
         Qt_DefaultCompiledVersion = Qt_6_10
 #if QT_VERSION >= QT_VERSION_CHECK(6, 11, 0)
 #error Add the datastream version for this Qt version and update Qt_DefaultCompiledVersion

tests/auto/corelib/serialization/qdatastream/tst_qdatastream.cpp

@@ -300,6 +300,7 @@ static constexpr int NColorRoles[] = {
     QPalette::PlaceholderText + 1, // Qt_6_0
     QPalette::Accent + 1,     // Qt_6_6
     QPalette::Accent + 1,     // Qt_6_7
+    QPalette::Accent + 1,     // Qt_6_10
 };
 
 // +1, because we start from "No Version"