tests

Fix linter errors #482

Job	Run time
Tests (8.1, macos-latest, prefer-stable)	1m 11s
Tests (8.1, ubuntu-latest, prefer-stable)	16s
Tests (8.1, macos-latest, prefer-lowest)	1m 17s
Tests (8.1, windows-latest, prefer-stable)	42s
Tests (8.1, windows-latest, prefer-lowest)	43s
Tests (8.2, ubuntu-latest, prefer-lowest)	16s
Tests (8.2, macos-latest, prefer-lowest)	1m 14s
Tests (8.2, ubuntu-latest, prefer-stable)	17s
Tests (8.2, windows-latest, prefer-lowest)	47s
Tests (8.1, ubuntu-latest, prefer-lowest)	21s
Tests (8.3, ubuntu-latest, prefer-stable)	14s
Tests (8.3, ubuntu-latest, prefer-lowest)	20s
Tests (8.2, windows-latest, prefer-stable)	42s
Tests (8.3, windows-latest, prefer-stable)	40s
Tests (8.4, ubuntu-latest, prefer-lowest)	14s
Tests (8.4, windows-latest, prefer-lowest)	50s
Tests (8.4, macos-latest, prefer-lowest)	1m 10s
Tests (8.3, macos-latest, prefer-stable)	1m 13s
Tests (8.4, macos-latest, prefer-stable)	1m 18s
Tests (8.3, windows-latest, prefer-lowest)	42s
Tests (8.4, windows-latest, prefer-stable)	38s
Tests (8.4, ubuntu-latest, prefer-stable)	15s
Tests (8.3, macos-latest, prefer-lowest)	1m 11s
Tests (8.2, macos-latest, prefer-stable)	1m 11s
	17m 42s

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