Model for lockstep tests #86

Job	Run time
cabal-check (9.6.2, 3.10.1.0, ubuntu-latest)	27s
cabal-fmt (9.2.8, 3.10.1.0, ubuntu-latest)	2m 48s
stylish-haskell (9.2.8, 3.10.1.0, ubuntu-latest)	2m 38s
build (8.10.7, 3.10.1.0, ubuntu-latest)	2m 13s
build (8.10.7, 3.10.1.0, windows-latest)	4m 42s
build (8.10.7, 3.10.1.0, macOS-latest)	4m 24s
build (9.2.8, 3.10.1.0, ubuntu-latest)	2m 23s
build (9.2.8, 3.10.1.0, windows-latest)	3m 21s
build (9.2.8, 3.10.1.0, macOS-latest)	1m 37s
build (9.4.6, 3.10.1.0, ubuntu-latest)	3m 9s
build (9.4.6, 3.10.1.0, windows-latest)	4m 30s
build (9.4.6, 3.10.1.0, macOS-latest)	7m 23s
build (9.6.2, 3.10.1.0, ubuntu-latest)	1m 11s
build (9.6.2, 3.10.1.0, windows-latest)	7m 24s
build (9.6.2, 3.10.1.0, macOS-latest)	1m 54s
	50m 4s

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