Sync auto-label.yml from .github repo #72

Job	Run time
test-review-and-execution (chromium, headless)	38s
test-review-and-execution (webkit, headless)	1m 2s
test-review-and-execution (chromium, headed)	38s
test-review-and-execution (webkit, headed)	54s
test-review-and-execution (firefox, headed)	36s
test-review-and-execution (firefox, headless)	37s
test-coverage-review	3s
	4m 28s

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