Support non-lock files for C# cache key computation #7757

Job	Run time
Packaging: Config and input (windows-latest, linked)	4m 38s
Packaging: Config and input (ubuntu-latest, linked)	1m 44s
Packaging: Config and input (ubuntu-latest, default)	1m 29s
Packaging: Config and input (macos-latest, nightly-latest)	2m 4s
Packaging: Config and input (windows-latest, default)	3m 43s
Packaging: Config and input (macos-latest, linked)	1m 53s
Packaging: Config and input (macos-latest, default)	1m 47s
Packaging: Config and input (windows-latest, nightly-latest)	5m 55s
Packaging: Config and input (ubuntu-latest, nightly-latest)	1m 32s
	24m 45s

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