WIP3 shell=cmd #2528

Job	Run time
macOS--dotnet-only	8m 3s
macOS--mono-only	6m 35s
linux22-github	4m 36s
windows--legacyFramework-only	14m 21s
macOS--dotnet6-and-mono	7m 49s
windows--dotnet6	6m 43s
windows--dotnet6-only	37s
linux22-github--newmono	4m 52s
linux22-vanilla--stockdotnet6	5m 13s
linux22-vanilla--stockdotnet6-and-newmono	6m 22s
linux22-vanilla--stockdotnet6-and-stockmono	5m 16s
linux22-vanilla--stockmono	5m 49s
linux20-github--newmono	4m 17s
linux20-github	4m 10s
linux22-vanilla--newmono	6m 55s
linux20-vanilla--newmono	7m 17s
linux20-vanilla--stockmono	6m 7s
conventions	0s
snap_pkg	0s
	1h 45m 2s

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