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Test the runner images in a dedicated `runner-images` PR check #5462

Job	Run time
Upload debug artifacts (linked)	6m 0s
Upload debug artifacts (nightly-latest)	6m 5s
Upload debug artifacts (default)	6m 7s
Upload debug artifacts (stable-v2.20.7)	4m 57s
Download and check debug artifacts	7s
	23m 16s