Additional nits on top of #23 #104

Job	Run time
cargo package	24s
cargo doc	24s
test (ubuntu-latest, 1.96.0)	2m 47s
test (macos-latest, 1.96.0)	2m 14s
no-std check (thumbv7em-none-eabihf)	45s
fuzz (pk_from_bytes)	2m 4s
fuzz (key_schedule)	1m 44s
fuzz (open)	1m 55s
cargo-deny	20s
test (ubuntu-latest, stable)	2m 3s
fuzz (enc_from_bytes)	2m 9s
test (windows-latest, 1.96.0)	4m 50s
test (ubuntu-latest, beta)	1m 59s
fuzz (derive_key_pair)	1m 48s
	25m 26s

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