refactor: eliminate warnings #1580

Job	Run time
test (ubuntu-latest, 28.2, false)	3m 5s
test (ubuntu-latest, 29.4, false)	5m 35s
test (ubuntu-latest, 30.1, false)	5m 4s
test (macos-latest, 28.2, false)	3m 27s
test (macos-latest, 29.4, false)	4m 17s
test (macos-latest, 30.1, false)	4m 2s
test (windows-latest, 28.2, false)	3m 6s
test (windows-latest, 29.4, false)	1m 30s
test (windows-latest, 30.1, false)	4m 14s
test (ubuntu-latest, snapshot, true)	2m 46s
test (macos-latest, snapshot, true)	3m 11s
test (windows-latest, snapshot, true)	3m 1s
	43m 18s

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