Fix spelling errors found by CodeSpell. See https://github.com/codes… #26

Job	Run time
linux (ENABLE_VALGRIND, GCC)	24s
macos (ENABLE_VALGRIND, GCC)	1m 22s
linux (ENABLE_VALGRIND, CLANG)	29s
macos (ENABLE_VALGRIND, CLANG)	11s
linux (ENABLE_SANITIZERS, GCC)	24s
macos (ENABLE_SANITIZERS, GCC)	17s
linux (ENABLE_SANITIZERS, CLANG)	35s
macos (ENABLE_SANITIZERS, CLANG)	15s
linux (NONE_MEM_CHECK, GCC)	28s
macos (NONE_MEM_CHECK, GCC)	13s
linux (NONE_MEM_CHECK, CLANG)	1m 45s
macos (NONE_MEM_CHECK, CLANG)	11s
	6m 34s

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