Fix trailing comma when there are no features to analyze #1595

Job	Run time
deploy-cluster / Deploy Cluster	8m 55s
Wrappers / Check cache (ubuntu)	2m 7s
Wrappers / Check cache (windows)	3m 50s
Test / Source Generation	10m 53s
Test / Weaver (windows-latest, win-x64)	15m 50s
Test / Weaver (ubuntu-latest, linux-x64)	4m 13s
Test / Weaver (macos-latest, osx-x64)	9m 19s
Wrappers / Catalyst	0s
Wrappers / Linux	0s
Wrappers / macOS	0s
Wrappers / Android	0s
Wrappers / Apple Platform	0s
Wrappers / Windows	0s
Wrappers / UWP	0s
Package / NuGet	15m 14s
deploy-cluster / Deploy Apps (code-coverage)	43s
Verify Namespaces	1m 25s
Package / Unity	5m 0s
Test / net7.0, win-x64	5m 53s
Test / net7.0, linux-x64	4m 15s
Test / net7.0, osx-x64	8m 32s
Test / net7.0, osx-arm64	7m 26s
Test / net7.0, win81	6m 29s
Test / .NET Framework	8m 7s
Test / UWP	11m 29s
Test / Maui.MacCatalyst	13m 18s
Test / Xamarin.macOS	9m 39s
Test / Xamarin.Android	22m 52s
Test / Maui.Android	26m 56s
Test / Xamarin.iOS	16m 50s
Test / Maui.iOS	22m 19s
Test / Xamarin.tvOS	10m 35s
Test / Code Coverage	23m 41s
Test / Woven classes	4m 13s
Test / Build Unity windows	5m 30s
Test / Build Unity linux	2m 9s
Test / Unity Linux	4m 21s
Test / Unity Windows	12m 39s
Cleanup / Cleanup Cluster	8s
	5h 4m 50s

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