Switching from Image to OS (#341) #268

Job	Run time
ubuntu-py38-oldestdeps	2m 1s
macos-py310-astroscrappy11	2m 43s
ubuntu-py39	1m 23s
ubuntu-py39-bottleneck	1m 37s
ubuntu-py310	1m 43s
macos-py39	2m 1s
windows-py310	3m 31s
windows-py39	3m 21s
windows-py38	3m 17s
ubuntu-codestyle	1m 37s
ubuntu-py310-test-alldeps-devdeps	1m 49s
	25m 3s

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