fix numpy.float to numpy.float64 #950

Job	Run time
Python 3.13 on macos-latest PyQt6 wheel	4m 14s
Python 3.9 on ubuntu-latest (Minimum Versions)	5m 14s
Python 3.14 on windows-latest PyQt6 wheel	4m 29s
Python 3.14 on macos-latest PySide6 wheel	5m 54s
Python 3.13 on ubuntu-latest PyQt5 wheel	5m 0s
Python 3.10 on ubuntu-latest PySide6 wheel	3m 8s
Python 3.12 on ubuntu-latest PySide6 wheel	3m 55s
Python 3.11 on ubuntu-latest PyQt6 wheel	3m 10s
Python 3.12 on macos-latest PySide6 wheel (for frozen MacOS binaries)	3m 36s
Python 3.13 on windows-latest PySide6 wheel (for frozen Windows binaries)	5m 32s
	44m 12s

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