config(mcl-disko): Add ext4 primary partition type #1079

Job	Run time
test-mcl	20s
lint / lint	29s
ci / post-initial-comment	9s
ci / Generate Matrix of Matrices	32s
ci / Generate Matrix	2m 19s
ci / Merge matrices	17s
ci / cachix \| x86_64-linux	12s
ci / cachix \| x86_64-linux	25s
ci / nix \| aarch64-darwin	1m 27s
ci / nix \| x86_64-linux	20s
ci / nix-eval-jobs \| x86_64-linux	21s
ci / nix \| x86_64-linux	21s
ci / cachix \| aarch64-darwin	1m 57s
ci / cachix \| x86_64-darwin	1m 29s
ci / nix-eval-jobs \| x86_64-linux	12s
ci / nix-eval-jobs \| aarch64-darwin	1m 32s
ci / nix-fast-build \| x86_64-darwin	2m 3s
ci / nix \| x86_64-darwin	1m 28s
ci / nix-fast-build \| aarch64-darwin	1m 41s
ci / nix-eval-jobs \| x86_64-darwin	1m 36s
ci / nix-fast-build \| x86_64-linux	12s
ci / nix-fast-build \| x86_64-linux	23s
ci / Final Results	35s
	20m 20s

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