Tests

Use `Data.Word8` when possible #285

Job	Run time
Stack (ubuntu-latest, --resolver nightly --stack-yaml stack-nightly.yaml)	3m 5s
Stack (ubuntu-latest, --resolver lts-22)	11m 11s
Stack (ubuntu-latest, --resolver lts-21 --stack-yaml stack-lts-21.yaml)	11m 8s
Stack (ubuntu-latest, --resolver lts-20 --stack-yaml stack-lts-20.yaml)	10m 50s
Stack (ubuntu-latest, --resolver lts-19 --stack-yaml stack-lts-19.yaml)	11m 4s
Stack (ubuntu-latest, --resolver lts-18 --stack-yaml stack-lts-18.yaml)	10m 21s
Stack (macos-latest, --resolver nightly --stack-yaml stack-nightly.yaml)	9m 44s
Stack (macos-latest, --resolver lts-22)	25m 28s
Stack (macos-latest, --resolver lts-21 --stack-yaml stack-lts-21.yaml)	18m 32s
Stack (macos-latest, --resolver lts-20 --stack-yaml stack-lts-20.yaml)	22m 58s
Stack (macos-latest, --resolver lts-19 --stack-yaml stack-lts-19.yaml)	22m 42s
Stack (macos-latest, --resolver lts-18 --stack-yaml stack-lts-18.yaml)	14m 56s
Stack (windows-latest, --resolver nightly --stack-yaml stack-nightly.yaml)	5m 8s
Stack (windows-latest, --resolver lts-22)	16m 46s
Stack (windows-latest, --resolver lts-21 --stack-yaml stack-lts-21.yaml)	17m 13s
Stack (windows-latest, --resolver lts-20 --stack-yaml stack-lts-20.yaml)	19m 55s
Stack (windows-latest, --resolver lts-19 --stack-yaml stack-lts-19.yaml)	19m 0s
Stack (windows-latest, --resolver lts-18 --stack-yaml stack-lts-18.yaml)	18m 36s
	4h 28m 37s

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