chore: warning cleanup #4122

Job	Run time
coverage	9m 34s
matrix	16s
build / linux-unittest-amd64-pinned	9m 13s
build / linux-contract-amd64-pinned	9m 13s
build / linux-integration-amd64-pinned	9m 11s
build / linux-tools-amd64-pinned	9m 10s
build / macos-unittest-amd64-pinned	9m 7s
build / macos-contract-amd64-pinned	8m 58s
build / macos-integration-amd64-pinned	9m 15s
build / macos-tools-amd64-pinned	9m 21s
build / windows-unittest-amd64-pinned	9m 13s
build / windows-contract-amd64-pinned	9m 13s
build / windows-integration-amd64-pinned	9m 10s
build / windows-tools-amd64-pinned	9m 20s
build / status	1s
	2h 0m 15s

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