tests

Disable suffixed variadic syntax #556

Job	Run time
Tests (8.1, ubuntu-latest, prefer-lowest)	26s
Tests (8.1, ubuntu-latest, prefer-stable)	18s
Tests (8.1, macos-latest, prefer-lowest)	1m 32s
Tests (8.1, macos-latest, prefer-stable)	1m 23s
Tests (8.1, windows-latest, prefer-lowest)	38s
Tests (8.1, windows-latest, prefer-stable)	38s
Tests (8.2, ubuntu-latest, prefer-lowest)	33s
Tests (8.2, ubuntu-latest, prefer-stable)	17s
Tests (8.2, macos-latest, prefer-lowest)	1m 28s
Tests (8.2, macos-latest, prefer-stable)	1m 32s
Tests (8.2, windows-latest, prefer-lowest)	36s
Tests (8.2, windows-latest, prefer-stable)	39s
Tests (8.3, ubuntu-latest, prefer-lowest)	20s
Tests (8.3, ubuntu-latest, prefer-stable)	15s
Tests (8.3, macos-latest, prefer-lowest)	1m 21s
Tests (8.3, macos-latest, prefer-stable)	2m 4s
Tests (8.3, windows-latest, prefer-lowest)	44s
Tests (8.3, windows-latest, prefer-stable)	50s
Tests (8.4, ubuntu-latest, prefer-lowest)	15s
Tests (8.4, ubuntu-latest, prefer-stable)	19s
Tests (8.4, macos-latest, prefer-lowest)	1m 14s
Tests (8.4, macos-latest, prefer-stable)	1m 37s
Tests (8.4, windows-latest, prefer-lowest)	31s
Tests (8.4, windows-latest, prefer-stable)	31s
	20m 1s

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