Update Newtonsoft.Json in E2E tests

To match OmniSharp's update.

Author: andyleejordan

test/PowerShellEditorServices.Test.E2E/PowerShellEditorServices.Test.E2E.csproj

@@ -9,7 +9,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
-    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="xunit" Version="2.5.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.1" />
     <PackageReference Include="Xunit.SkippableFact" Version="1.4.13" />