QmlDesigner: Add Qt 6.7 to desktop launcher

Task-number: QDS-12971
Change-Id: Iff0e1714fbb098c9ad1c106fef29070d805c36d0
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
(cherry picked from commit aa26014bac)
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

share/qtcreator/qmldesigner/studio_templates/projects/desktop-launcher/wizard.json

@@ -280,6 +280,13 @@
                                 "({
                                     'TargetQuickVersion': '6.6'
                                 })"
+                            },
+                            {
+                                "trKey": "Qt 6.7",
+                                "value":
+                                "({
+                                    'TargetQuickVersion': '6.7'
+                                })"
                             }
                         ]
                     }