Basic support for overlay PR analysis #669

Job	Run time
Upload debug artifacts after failure in analyze (linked)	2m 27s
Upload debug artifacts after failure in analyze (nightly-latest)	2m 58s
Upload debug artifacts after failure in analyze (default)	2m 13s
Upload debug artifacts after failure in analyze (stable-v2.20.3)	1m 38s
Download and check debug artifacts after failure in analyze	13s
	9m 29s

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