Overlays: allow any build mode for Go #1626

Job	Run time
Upload debug artifacts after failure in analyze (stable-v2.20.3)	2m 2s
Upload debug artifacts after failure in analyze (linked)	3m 5s
Upload debug artifacts after failure in analyze (nightly-latest)	3m 16s
Upload debug artifacts after failure in analyze (default)	3m 2s
Download and check debug artifacts after failure in analyze	10s
	11m 35s

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