build

Try alternative preprocessor workaround for python3.8 #894

Job	Run time
check	45s
docs	1m 6s
py38 (ubuntu)	2m 9s
py39 (ubuntu)	4m 41s
py39 (windows)	5m 47s
py310 (ubuntu)	4m 43s
py310 (windows)	6m 14s
py311 (ubuntu)	4m 35s
py311 (macos)	3m 47s
py311 (windows)	6m 17s
Deploy docs to GitHub Pages	0s
Upload coverage to Coveralls	0s
	40m 4s

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