Remove Microsoft.TestPlatform.ObjectModel

Author: RehanSaeed

Tests/Directory.Build.props

@@ -8,7 +8,7 @@
     </PackageReference>
     <PackageReference Include="Microsoft.CodeCoverage" PrivateAssets="All" Version="16.11.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
-    <PackageReference Include="Microsoft.TestPlatform.ObjectModel" Version="16.10.0" />
+    <PackageReference Include="Microsoft.TestPlatform.ObjectModel" Version="16.11.0" />
     <PackageReference Include="Moq" Version="4.16.1" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" PrivateAssets="All" Version="2.4.3">