docs: fix reference to onTestFailed on the context (#5394) #24

Job	Run time
test-browser (chrome, chromium)	3m 32s
test (ubuntu-latest, 18)	11m 13s
test-browser (firefox, firefox)	4m 3s
lint	1m 17s
test (ubuntu-latest, 20)	10m 10s
test-browser-windows (chrome, chromium)	6m 26s
test-browser (edge, webkit)	3m 26s
test (macos-14, 20)	4m 55s
test-browser-windows (edge, webkit)	6m 29s
test (windows-latest, 20)	17m 2s
test-ui	1m 8s
test-ui-e2e (ubuntu-latest)	2m 4s
typecheck	1m 50s
test-ui-e2e (macos-14)	3m 36s
test-ui-e2e (windows-latest)	3m 57s
	1h 21m 8s

Provide feedback