build

Build nix develop for all GHCs #891

Job	Run time
Run fourmolu	5s
Generate matrix from cabal	3s
Check and format all cabal files	6s
Nix Flake (ubuntu-latest)	3m 22s
Nix Flake (macos-latest)	3m 38s
Run hlint	8s
Haskell GHC 9.2 cabal	4m 5s
Haskell GHC 9.4 cabal	4m 22s
Haskell GHC 9.6 cabal	4m 45s
Haskell GHC 9.8 cabal	3m 35s
Haskell GHC 9.10 cabal	3m 18s
Nix Flake Develop (9.2, ubuntu-latest)	15s
Nix Flake Develop (9.4, ubuntu-latest)	16s
Nix Flake Develop (9.6, ubuntu-latest)	16s
Nix Flake Develop (9.8, ubuntu-latest)	16s
Nix Flake Develop (9.10, ubuntu-latest)	21s
Successfully build and test on all systems	0s
	28m 51s

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