CI refactoring #237

Job	Run time
test (3.5, macos-latest, py,codecov)	2m 41s
test (3.6, windows-latest, py,codecov)	4m 28s
test (3.6, macos-latest, py,codecov)	1m 38s
test (3.7, ubuntu-latest, py,codecov)	57s
test (3.7, windows-latest, py,codecov)	3m 6s
test (3.7, macos-latest, py,codecov)	1m 17s
test (3.8, ubuntu-latest, py,codecov)	50s
test (3.8, windows-latest, py,codecov)	3m 23s
test (3.8, macos-latest, py,codecov)	1m 5s
test (3.9, ubuntu-latest, py,codecov)	38s
test (3.9, windows-latest, py,codecov)	2m 3s
test (3.9, macos-latest, py,codecov)	2m 14s
test (3.10, ubuntu-latest, py,codecov)	1m 5s
test (3.10, windows-latest, py,codecov)	1m 33s
test (3.10, macos-latest, py,codecov)	1m 12s
test (3.11, ubuntu-latest, py,codecov)	49s
test (3.11, windows-latest, py,codecov)	2m 31s
test (3.11, macos-latest, py,codecov)	3m 27s
test (3.5, ubuntu-20.04, py,codecov)	51s
test (3.6, ubuntu-20.04, py,codecov)	47s
test (3.10, ubuntu-latest, check,docs,build)	1m 36s
	38m 11s

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