Updated unit tests due to changes in the limits of ImageMagick. #587

Job	Run time
Linux (Q8/Q16/Q16-HDRI, arm64)	31m 25s
MacOS (Q8/Q16/Q16-HDRI)	5m 9s
Linux (Q8/Q16/Q16-HDRI, x64)	6m 4s
Linux musl (Q8/Q16/Q16-HDRI, x64)	6m 23s
Library (Core)	8m 51s
Library (SystemDrawing)	8m 40s
Windows (Q8, x86)	9m 25s
Windows (Q8, x64)	9m 50s
Library (SystemWindowsMedia)	8m 27s
Windows (Q8, arm64)	6m 59s
Windows (Q8, Any CPU)	9m 38s
Windows (Q8-OpenMP, x64)	9m 43s
Windows (Q8-OpenMP, arm64)	7m 23s
Windows (Q16, x86)	9m 58s
Windows (Q16, x64)	9m 35s
Windows (Q16, arm64)	8m 2s
Windows (Q16, Any CPU)	9m 31s
Windows (Q16-OpenMP, x64)	9m 36s
Windows (Q16-OpenMP, arm64)	9m 24s
Windows (Q16-HDRI, x86)	9m 36s
Windows (Q16-HDRI, x64)	9m 34s
Windows (Q16-HDRI, arm64)	9m 34s
Windows (Q16-HDRI, Any CPU)	9m 35s
Windows (Q16-HDRI-OpenMP, x64)	9m 35s
Windows (Q16-HDRI-OpenMP, arm64)	8m 58s
	4h 0m 55s

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