MNT Fix _posixsubprocess.fork_exec arguments for Python 3.10 and Pyth… #103

Job	Run time
linting	7s
Testing (windows-py313, windows-latest, 3.13)	8m 19s
Testing (windows-py39, windows-latest, 3.9, true)	7m 51s
Testing (macos-py313, macos-latest, 3.13)	7m 7s
Testing (macos-py39, macos-latest, 3.9)	6m 35s
Testing (linux-py313, ubuntu-latest, 3.13, true)	6m 52s
Testing (linux-py39-joblib-tests, ubuntu-latest, 3.9, true)	2m 26s
Testing (linux-python-py39-high-memory, ubuntu-latest, 3.9, true)	6m 53s
Testing (linux-py39, ubuntu-latest, 3.9, true)	5m 31s
	51m 41s

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