chore: rename headful -> headed (#1835) #2776

Job	Run time
stable (windows-latest, msedge)	15m 44s
Java_21 (chromium)	7m 21s
stable (macos-latest, chrome)	12m 5s
stable (ubuntu-latest, chrome)	6m 59s
stable (windows-latest, chrome)	9m 47s
Java_21 (firefox)	11m 55s
stable (macos-latest, msedge)	25m 21s
Java_21 (webkit)	9m 30s
dev (ubuntu-latest, chromium)	6m 28s
dev (windows-latest, chromium)	7m 32s
dev (ubuntu-latest, webkit)	10m 9s
dev (macos-latest, firefox)	25m 13s
dev (macos-latest, chromium)	7m 58s
dev (windows-latest, firefox)	14m 26s
dev (windows-latest, webkit)	30m 14s
dev (macos-latest, webkit)	30m 19s
dev (ubuntu-latest, firefox)	12m 54s
	4h 3m 55s

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