fix spelling of CMake #841

Job	Run time
Test install with generated cython files	3m 19s
Test sse2 code on Linux (gcc)	6m 22s
Python 3.9	5m 0s
Test installation using system supplied libs	2m 56s
Python 3.9	8m 2s
Python 3.9	5m 4s
Python 3.10	5m 0s
Test installation using newest version of Taskflow	2m 58s
Python 3.10	8m 57s
Python 3.10	5m 49s
Python 3.11	4m 57s
Python 3.11	8m 42s
Python 3.11	4m 43s
Python 3.12	5m 9s
Python 3.12	8m 57s
Python 3.12	5m 8s
Python 3.13	5m 30s
Python 3.13	8m 41s
Python 3.13	6m 12s
	1h 51m 26s

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