[Bug fix] Use fromiter instead of array to convert empty matlab cell … #130

Job	Run time
run-unit-tests (latest, ubuntu-latest, 3.9)	2m 24s
run-unit-tests (latest, ubuntu-latest, 3.10)	2m 29s
run-unit-tests (latest, ubuntu-latest, 3.11)	2m 23s
run-unit-tests (latest, ubuntu-latest, 3.12)	2m 28s
run-unit-tests (latest, macos-13, 3.9)	5m 42s
run-unit-tests (latest, macos-13, 3.10)	5m 9s
run-unit-tests (latest, macos-13, 3.11)	6m 18s
run-unit-tests (latest, macos-13, 3.12)	6m 27s
run-unit-tests (latest, macos-latest, 3.9)	2m 16s
run-unit-tests (latest, macos-latest, 3.10)	2m 31s
run-unit-tests (latest, macos-latest, 3.11)	1m 47s
run-unit-tests (latest, macos-latest, 3.12)	2m 23s
run-unit-tests (latest, windows-latest, 3.9)	2m 46s
run-unit-tests (latest, windows-latest, 3.10)	2m 39s
run-unit-tests (latest, windows-latest, 3.11)	2m 31s
run-unit-tests (latest, windows-latest, 3.12)	2m 44s
	52m 57s

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