Haskell CI

Use `MutableByteArray` as buffers, add manual `keepAlive` #10

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Run time

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Job	Run time
build (9.2.8, 3.10.2.1, ubuntu-latest)	2m 4s
build (9.4.8, 3.10.2.1, ubuntu-latest)	2m 32s
build (9.6.4, 3.10.2.1, ubuntu-latest)	1m 20s
build (9.8.2, 3.10.2.1, ubuntu-latest)	1m 25s
	7m 21s