Fsdk/Network: allow nuget.exe on non-legacy #1509

Job	Run time
linux-newLTS-vanilla--dotnet6	7m 59s
linux-newLTS-github--dotnet-and-xbuild	8m 15s
linux-newLTS-github--dotnet-and-msbuild	8m 32s
linux-newLTS-vanilla--newmono	6m 40s
linux-newLTS-vanilla--stockmono	5m 25s
linux-oldLTS-github--dotnet-and-msbuild	9m 41s
linux-oldLTS-github--dotnet-and-xbuild	8m 44s
linux-oldLTS-vanilla--newmono	6m 26s
linux-oldLTS-vanilla--stockmono	6m 15s
macOS--dotnet6-and-mono	10m 14s
macOS--mono	6m 10s
windows--dotnet6	11m 15s
windows--legacyFramework	15m 58s
sanity-check	32s
publish	0s
	1h 52m 6s

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