Add more miri jobs in CI #179

Job	Run time
Miri (x86_64-unknown-linux-gnu, --no-default-features)	1m 0s
Miri (x86_64-unknown-linux-gnu)	1m 20s
Miri (x86_64-unknown-linux-gnu, --all-features)	1m 21s
Miri (aarch64-unknown-linux-gnu, --no-default-features)	1m 14s
Miri (aarch64-unknown-linux-gnu)	1m 12s
Miri (aarch64-unknown-linux-gnu, --all-features)	48s
fmt	20s
docs	18s
feature checks	25s
Fuzz	33s
Outdated	8s
Clippy	21s
Test (x86_64-unknown-linux-gnu, nightly)	29s
Test (x86_64-unknown-linux-gnu, beta)	25s
Test (x86_64-unknown-linux-gnu, stable)	27s
Test (x86_64-unknown-linux-gnu, 1.64)	27s
Test (aarch64-unknown-linux-gnu, nightly)	51s
Test (aarch64-unknown-linux-gnu, beta)	49s
Test (aarch64-unknown-linux-gnu, stable)	1m 5s
Test (aarch64-unknown-linux-gnu, 1.64)	1m 3s
	14m 36s

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