chore: Fix new clippy lints #2274

Job	Run time
Generate crates matrix	15s
Check crates matrix	2s
Build zebrad crate	36m 44s
Build zebra-utils crate	16m 23s
Build zebra-test crate	1m 45s
Build zebra-state crate	22m 36s
Build zebra-script crate	3m 20s
Build zebra-scan crate	25m 22s
Build zebra-rpc crate	34m 58s
Build zebra-node-services crate	3m 9s
Build zebra-network crate	6m 46s
Build zebra-grpc crate	14m 52s
Build zebra-consensus crate	17m 5s
Build zebra-chain crate	4m 58s
Build tower-fallback crate	1m 9s
Build tower-batch-control crate	1m 26s
Open or update issues for building crates individually failures	0s
	3h 10m 50s

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