docs: disable ILU for now #34

Job	Run time
test (Core, min, ubuntu-latest)	1h 3m 7s
test (Core, min, macos-latest)	55m 2s
test (Core, min, windows-latest)	1h 3m 30s
test (Core, 1, ubuntu-latest)	59m 27s
test (Core, 1, macos-latest)	1h 50m 29s
test (Core, 1, windows-latest)	49m 12s
test (Downstream, min, ubuntu-latest)	10m 59s
test (Downstream, min, macos-latest)	10m 22s
test (Downstream, min, windows-latest)	15m 41s
test (Downstream, 1, ubuntu-latest)	10m 33s
test (Downstream, 1, macos-latest)	7m 27s
test (Downstream, 1, windows-latest)	13m 24s
test (Misc, min, ubuntu-latest)	13m 45s
test (Misc, min, macos-latest)	12m 1s
test (Misc, min, windows-latest)	19m 15s
test (Misc, 1, ubuntu-latest)	13m 16s
test (Misc, 1, macos-latest)	10m 25s
test (Misc, 1, windows-latest)	16m 23s
test (Wrappers, min, ubuntu-latest)	11m 49s
test (Wrappers, min, macos-latest)	7m 36s
test (Wrappers, min, windows-latest)	17m 8s
test (Wrappers, 1, ubuntu-latest)	10m 43s
test (Wrappers, 1, macos-latest)	7m 21s
test (Wrappers, 1, windows-latest)	16m 17s
	10h 25m 12s

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