Python 3.12 support #683

Job	Run time
Unit tests (ubuntu-latest, 3.8, 5, pyqt)	2m 48s
Unit tests (ubuntu-latest, 3.8, 5, pyside)	2m 53s
Unit tests (ubuntu-latest, 3.9, 5, pyqt)	2m 51s
Unit tests (ubuntu-latest, 3.9, 5, pyside)	2m 53s
Unit tests (ubuntu-latest, 3.10, 5, pyqt)	3m 2s
Unit tests (ubuntu-latest, 3.10, 6, pyqt)	3m 18s
Unit tests (ubuntu-latest, 3.11, 6, pyqt)	3m 36s
Unit tests (ubuntu-latest, 3.12, 6, pyqt)	3m 36s
Unit tests (windows-latest, 3.8, 5, pyqt)	3m 38s
Unit tests (windows-latest, 3.8, 5, pyside)	4m 13s
Unit tests (windows-latest, 3.9, 5, pyqt)	6m 10s
Unit tests (windows-latest, 3.9, 5, pyside)	4m 32s
Unit tests (windows-latest, 3.10, 5, pyqt)	4m 39s
Unit tests (windows-latest, 3.10, 6, pyqt)	5m 36s
Unit tests (windows-latest, 3.10, 6, pyside)	4m 41s
Unit tests (windows-latest, 3.11, 6, pyqt)	5m 0s
Unit tests (windows-latest, 3.11, 6, pyside)	3m 35s
Unit tests (windows-latest, 3.12, 6, pyqt)	3m 42s
Unit tests (macos-latest, 3.8, 5, pyqt)	7m 15s
Unit tests (macos-latest, 3.8, 5, pyside)	3m 41s
Unit tests (macos-latest, 3.9, 5, pyqt)	4m 27s
Unit tests (macos-latest, 3.9, 5, pyside)	4m 16s
Unit tests (macos-latest, 3.10, 5, pyqt)	6m 6s
Unit tests (macos-latest, 3.10, 6, pyqt)	6m 2s
Unit tests (macos-latest, 3.10, 6, pyside)	5m 6s
Unit tests (macos-latest, 3.11, 6, pyqt)	6m 47s
Unit tests (macos-latest, 3.11, 6, pyside)	5m 35s
Unit tests (macos-latest, 3.12, 6, pyqt)	6m 44s
	2h 6m 42s

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