tests

Add "@category" tag support #480

Job	Run time
Tests (8.1, ubuntu-latest, prefer-lowest)	18s
Tests (8.1, ubuntu-latest, prefer-stable)	18s
Tests (8.1, macos-latest, prefer-lowest)	1m 18s
Tests (8.1, macos-latest, prefer-stable)	1m 34s
Tests (8.1, windows-latest, prefer-lowest)	34s
Tests (8.1, windows-latest, prefer-stable)	42s
Tests (8.2, ubuntu-latest, prefer-lowest)	24s
Tests (8.2, ubuntu-latest, prefer-stable)	12s
Tests (8.2, macos-latest, prefer-lowest)	1m 12s
Tests (8.2, macos-latest, prefer-stable)	1m 16s
Tests (8.2, windows-latest, prefer-lowest)	36s
Tests (8.2, windows-latest, prefer-stable)	38s
Tests (8.3, ubuntu-latest, prefer-lowest)	12s
Tests (8.3, ubuntu-latest, prefer-stable)	35s
Tests (8.3, macos-latest, prefer-lowest)	1m 38s
Tests (8.3, macos-latest, prefer-stable)	1m 41s
Tests (8.3, windows-latest, prefer-lowest)	40s
Tests (8.3, windows-latest, prefer-stable)	41s
Tests (8.4, ubuntu-latest, prefer-lowest)	18s
Tests (8.4, ubuntu-latest, prefer-stable)	14s
Tests (8.4, macos-latest, prefer-lowest)	1m 25s
Tests (8.4, macos-latest, prefer-stable)	2m 13s
Tests (8.4, windows-latest, prefer-lowest)	36s
Tests (8.4, windows-latest, prefer-stable)	43s
	19m 58s

Provide feedback