fixing the allowed-failure tests by pre-installing the pyo dependencies #99

Job	Run time
Python 3.9.xx with minimal dependencies	1m 28s
Python 3.9.xx with all optional dependencies	1m 44s
Code style checks	54s
Python 3.9.xx with numpy 1.24 and full coverage	3m 29s
(Allowed Failure) Python 3.11 with dev version of key dependencies	3m 7s
Python 3.9.xx with oldest supported version of all dependencies	1s
Python 3.10.xx with minimal dependencies	1m 28s
Python 3.10.xx with all optional dependencies	2m 6s
Python 3.10.xx with numpy 1.24 and full coverage	1m 38s
Python 3.10.xx with numpy 2.10 and full coverage	1m 45s
Python 3.10.xx with oldest supported version of all dependencies	1s
Python 3.11.xx with minimal dependencies	2m 31s
Python 3.11.xx with all optional dependencies	2m 50s
Python 3.11.xx with numpy 1.24 and full coverage	2m 31s
Python 3.11.xx with numpy 2.10 and full coverage	2m 42s
Python 3.11.xx with oldest supported version of all dependencies	1s
	28m 16s

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