Fix newer clippy warnings #1068

Job	Run time
lint	18s
clippy (stable)	1m 16s
clippy (beta)	1m 22s
deny (advisories)	44s
build (stable)	1m 26s
doc (stable)	59s
build-all-features (stable)	1m 27s
deny (bans licenses sources)	40s
build (beta)	1m 29s
doc (beta)	53s
build-all-features (beta)	1m 35s
build (nightly-2023-10-01)	1m 34s
build-all-features (nightly-2023-10-01)	1m 29s
sort	38s
test (stable)	2m 14s
build-no-alloc (thumbv6m-none-eabi)	1m 15s
test (beta)	1m 56s
build-no-alloc (thumbv7m-none-eabi)	1m 12s
coverage	1m 43s
build-no-alloc (thumbv8m.main-none-eabi)	1m 26s
test (nightly-2023-10-01)	2m 15s
build-no-alloc (aarch64-linux-android)	1m 20s
build-no-alloc (aarch64-apple-ios)	1m 13s
build-no-alloc (wasm32-unknown-unknown)	1m 13s
	31m 37s

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