tests and coverage with matlab #280

Job	Run time
tests_matlab (ubuntu-latest, R2023b)	2m 18s
tests_matlab (macos-13, R2023b)	3m 35s
tests_matlab (windows-latest, R2021a)	4m 53s
tests_matlab (macos-13, R2021a)	3m 16s
tests_matlab (ubuntu-latest, R2021a)	2m 24s
tests_matlab (macos-14, R2023b)	3m 14s
tests_matlab (windows-latest, R2023b)	4m 28s
	24m 8s

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