Support non-lock files for C# cache key computation #1984

Job	Run time
Upload debug artifacts after failure in analyze (stable-v2.20.3)	1m 48s
Upload debug artifacts after failure in analyze (nightly-latest)	3m 0s
Upload debug artifacts after failure in analyze (default)	3m 19s
Upload debug artifacts after failure in analyze (linked)	3m 20s
Download and check debug artifacts after failure in analyze	18s
	11m 45s

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