Basic support for overlay PR analysis #752

Job	Run time
Upload debug artifacts after failure in analyze (linked)	3m 7s
Upload debug artifacts after failure in analyze (default)	3m 26s
Upload debug artifacts after failure in analyze (stable-v2.20.3)	1m 46s
Upload debug artifacts after failure in analyze (nightly-latest)	3m 7s
Download and check debug artifacts after failure in analyze	10s
	11m 36s

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