Restored typecast that was removed by accident. #977

Job	Run time
MacOS (Q8/Q16/Q16-HDRI, arm64)	1m 48s
Linux (Q8/Q16/Q16-HDRI, x64)	4m 10s
Linux musl (Q8/Q16/Q16-HDRI, x64)	4m 4s
Library (Core)	6m 22s
MacOS (Q8/Q16/Q16-HDRI)	3m 2s
Library (SystemDrawing)	6m 27s
Windows (Q8, x86)	9m 59s
Windows (Q8, x64)	9m 38s
Windows (Q8, arm64)	8m 16s
Library (SystemWindowsMedia)	7m 2s
Windows (Q8, Any CPU)	8m 8s
Windows (Q8-OpenMP, x64)	8m 33s
Windows (Q8-OpenMP, arm64)	7m 5s
Windows (Q16, x86)	9m 51s
Windows (Q16, x64)	7m 3s
Windows (Q16, arm64)	7m 36s
Windows (Q16, Any CPU)	10m 0s
Windows (Q16-OpenMP, x64)	8m 35s
Windows (Q16-OpenMP, arm64)	6m 30s
Windows (Q16-HDRI, x86)	10m 40s
Windows (Q16-HDRI, x64)	8m 41s
Windows (Q16-HDRI, arm64)	8m 25s
Windows (Q16-HDRI, Any CPU)	9m 22s
Windows (Q16-HDRI-OpenMP, x64)	8m 23s
Windows (Q16-HDRI-OpenMP, arm64)	6m 54s
	3h 6m 34s

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