Fixed bug where images for scanlines weren't marked as used in the cu… #1091

Job	Run time
Linux (ubuntu-20.04, standalone, false)	2m 18s
Linux (ubuntu-20.04, repo, false)	2m 46s
Linux (ubuntu-22.04, standalone, false)	2m 17s
Linux (ubuntu-22.04, repo, false)	2m 13s
Linux (ubuntu-22.04, repo, true)	3m 25s
Linux (ubuntu-24.04, standalone, false)	1m 58s
Linux (ubuntu-24.04, repo, false)	2m 1s
Linux (ubuntu-24.04, repo, true)	3m 47s
	20m 45s

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