fixed imcompatible test of numpy 2.1.x with Python 3.9.x #96

Job	Run time
Code style checks	30s
Python 3.9.xx with minimal dependencies	50s
(Allowed Failure) Python 3.11 with dev version of key dependencies	1m 21s
Python 3.9.xx with all optional dependencies	49s
Python 3.9.xx with numpy 1.24 and full coverage	52s
Python 3.9.xx with oldest supported version of all dependencies	1s
Python 3.10.xx with minimal dependencies	51s
Python 3.10.xx with all optional dependencies	51s
Python 3.10.xx with numpy 1.24 and full coverage	53s
Python 3.10.xx with numpy 2.10 and full coverage	52s
Python 3.10.xx with oldest supported version of all dependencies	1s
Python 3.11.xx with minimal dependencies	41s
Python 3.11.xx with all optional dependencies	37s
Python 3.11.xx with numpy 1.24 and full coverage	44s
Python 3.11.xx with numpy 2.10 and full coverage	44s
Python 3.11.xx with oldest supported version of all dependencies	1s
	10m 38s

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