Add System.Diagnostics.EventLog

Add System.Diagnostics.EventLog into ASP.NET Core 3.x E2E test project

Author: xuzhg

test/E2ETest/Microsoft.Test.E2E.AspNet.OData/Build.AspNetCore3x/Microsoft.Test.E2E.AspNetCore3x.OData.csproj

@@ -30,6 +30,7 @@
     <PackageReference Include="Microsoft.OData.Client" Version="7.6.1" />
     <PackageReference Include="System.Reflection" Version="4.3.0" />
     <PackageReference Include="System.Runtime.Extensions" Version="4.3.1" />
+    <PackageReference Include="System.Diagnostics.EventLog" Version="4.7.0" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.assert" Version="2.4.1" />
     <PackageReference Include="xunit.core" Version="2.4.1" />