Break up stack-arguments, prep v5 #140

Job	Run time
test-generate	3s
test (ubuntu-latest, nightly)	2m 5s
test-auto-nightly	2m 4s
test-auto-nightly-with-explicit	2m 15s
test (ubuntu-latest, lts)	2m 7s
test (ubuntu-latest, lts-22.7, 9.6.4)	2m 10s
test (ubuntu-latest, lts-20.2, 9.2.5)	1m 6s
test (ubuntu-latest, lts-19.33, 9.0.2)	1m 20s
test (ubuntu-latest, lts-18.28, 8.10.7)	1m 0s
test (ubuntu-latest, lts-16.31, 8.8.4)	58s
test (ubuntu-latest, lts-12.26, 8.4.4)	1m 0s
test (macOS-latest, nightly)	5m 8s
test (macOS-latest, lts)	4m 40s
test (macOS-latest, lts-22.7, 9.6.4)	6m 29s
test (macOS-latest, lts-20.2, 9.2.5)	2m 59s
test (macOS-latest, lts-19.33, 9.0.2)	3m 24s
test (macOS-latest, lts-18.28, 8.10.7)	3m 19s
test (macOS-latest, lts-16.31, 8.8.4)	2m 29s
test (macOS-latest, lts-12.26, 8.4.4)	2m 12s
test (windows-latest, nightly)	5m 34s
test (windows-latest, lts)	3m 50s
test (windows-latest, lts-22.7, 9.6.4)	3m 25s
test (windows-latest, lts-20.2, 9.2.5)	4m 5s
test (windows-latest, lts-19.33, 9.0.2)	3m 41s
test (windows-latest, lts-18.28, 8.10.7)	3m 52s
test (windows-latest, lts-16.31, 8.8.4)	3m 16s
test (windows-latest, lts-12.26, 8.4.4)	3m 57s
test-stack-yamls (stack-nightly.yaml)	2m 1s
test-stack-yamls (stack.yaml)	59s
	1h 21m 28s

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