fix: Add missing json.net dependency

Author: jeromelaban

src/Uno.Wasm.Bootstrap/Uno.Wasm.Bootstrap.csproj

@@ -64,6 +64,14 @@
 			<Visible>false</Visible>
 			<Visible>false</Visible>
 		</None>
+		
+		<Content Include="$(NuGetPackageRoot)/newtonsoft.json/13.0.2/lib/netstandard2.0/*.dll">
+			<Pack>true</Pack>
+			<PackagePath>tools</PackagePath>
+			<Visible>false</Visible>
+			<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+			<Visible>false</Visible>
+		</Content>
 
 	</ItemGroup>