Overlays: allow any build mode for Go #1625

Job	Run time
Upload debug artifacts after failure in analyze (default)	3m 12s
Upload debug artifacts after failure in analyze (linked)	3m 20s
Upload debug artifacts after failure in analyze (nightly-latest)	3m 5s
Upload debug artifacts after failure in analyze (stable-v2.20.3)	1m 51s
Download and check debug artifacts after failure in analyze	11s
	11m 39s

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