Added back blank line before EOF

Author: ngruson

test/Directory.Packages.props

@@ -5,4 +5,4 @@
     <PackageVersion Include="Microsoft.Extensions.Telemetry.Testing" Version="8.0.0-rc.2.23510.2" />
     <PackageVersion Include="System.Runtime.InteropServices.RuntimeInformation" Version="4.3.0" />
   </ItemGroup>
-</Project>
+</Project>