Crash when displaying score

[FelipeDefensor]

Crash occurs when scrolling or resizing the window with a SvgViewer. This is the error:

Traceback (most recent call last):
  File "C:\Users\Felipe\dev\tilia-desktop\tilia\ui\timelines\score\element\time_signature.py", line 148, in boundingRect
    items = self.canvas_items()
            ^^^^^^^^^^^^^^^^^
NotImplementedError: pure virtual method 'QGraphicsItem.paint' not implemented.

To reproduce, open this file and drag the bottom edge of the main window to increase its size.

[FelipeDefensor]

@azfoo could you take a look at this? We can't release until this is fixed.

[FelipeDefensor]

Downgrading to PySide 6.9.3 fixes this. This might be a PySide bug.