Enable rebuilding PRs with conflicts #971

Job	Run time
Upload debug artifacts after failure in analyze (default)	3m 20s
Upload debug artifacts after failure in analyze (linked)	3m 28s
Upload debug artifacts after failure in analyze (nightly-latest)	3m 31s
Upload debug artifacts after failure in analyze (stable-v2.20.3)	2m 11s
Download and check debug artifacts after failure in analyze	11s
	12m 41s

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