qtvcp -tab_widget: fix float/int error with new libraries

New libraries will not automatically convert float to int

Author: c-morley

lib/python/qtvcp/widgets/tab_widget.py

@@ -40,5 +40,5 @@ def __init__(self, parent=None, size=1.5):
     def tabSizeHint(self, index):
         size = QTabBar.tabSizeHint(self, index)
         w = size.height()*self._size
-        return QSize(size.width(), w)
+        return QSize(size.width(), int(w))