Fix incorrect folder coverage calculation #46092

Job	Run time
Detect workspace changes	15s
Workspace noop, Verify step	44s
Workspace code-coverage, Verify step	41s
Workspace feedback, Verify step	43s
Workspace noop, CI step for node 20.x	47s
Workspace feedback, CI step for node 22.x	2m 50s
Workspace feedback, CI step for node 20.x	3m 19s
Workspace code-coverage, CI step for node 22.x	2m 38s
Workspace code-coverage, CI step for node 20.x	2m 31s
Workspace noop, CI step for node 22.x	48s
check all required jobs	2s
	15m 18s

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