GUI
- Set setuptools to v60.6.0
- Upgrade to pywin32 v303. Ref #3290
- Fix int() call. Ref #3283
- Fix QPoint() as unexpected type 'float'. Fixes #3283
- Fix painter.drawRect() has unexpected type 'float'. Fixes #3282
- Fix SpinBox.setValue() requires integer. Fixes #3281
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