tests

Implement a pyinstaller tox env #146

Job	Run time
minimum dependency versions	16s
py3.12 unit tests	17s
py3.13 unit tests	13s
nix	42s
py3.11 unit tests	16s
py3.9 unit tests	18s
style	10s
py3.10 unit tests	17s
doc	13s
	2m 42s

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