Fix newer clippy warnings (#491) #1077

Job	Run time
lint	14s
build-all-features (stable)	1m 9s
clippy (stable)	56s
build-no-alloc (thumbv6m-none-eabi)	1m 31s
clippy (beta)	1m 5s
build-all-features (beta)	1m 20s
build (stable)	1m 13s
build-no-alloc (thumbv7m-none-eabi)	1m 15s
build-all-features (nightly-2023-10-01)	1m 11s
build (beta)	1m 10s
coverage	1m 32s
build (nightly-2023-10-01)	1m 15s
build-no-alloc (thumbv8m.main-none-eabi)	1m 12s
deny (advisories)	45s
build-no-alloc (aarch64-linux-android)	1m 34s
deny (bans licenses sources)	45s
sort	36s
build-no-alloc (aarch64-apple-ios)	1m 14s
doc (stable)	1m 1s
build-no-alloc (wasm32-unknown-unknown)	1m 11s
test (stable)	2m 36s
doc (beta)	47s
test (beta)	2m 39s
test (nightly-2023-10-01)	2m 44s
	30m 55s

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