Add Microsoft.Testing.Extensions.TrxReport for --report-trx support

The test target uses --report-trx which requires the TrxReport extension
package. This was missing from Directory.Packages.props and test.props,
causing all test jobs to fail with 'Unknown option --report-trx'.

Author: damianh

Directory.Packages.props

@@ -32,6 +32,7 @@
     <PackageVersion Include="Microsoft.IdentityModel.Protocols.OpenIdConnect" Version="$(WilsonVersion)" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
     <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.3.1" />
+    <PackageVersion Include="Microsoft.Testing.Extensions.TrxReport" Version="2.1.0" />
     <PackageVersion Include="Microsoft.NETCore.Jit" Version="2.0.8" />
     <PackageVersion Include="MinVer" Version="6.0.0" />
     <PackageVersion Include="PublicApiGenerator" Version="11.5.4" />

test.props

@@ -18,6 +18,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Testing.Extensions.CodeCoverage" />
+    <PackageReference Include="Microsoft.Testing.Extensions.TrxReport" />
     <PackageReference Include="Shouldly" />
     <PackageReference Include="xunit.v3.core.mtp-v2" />
   </ItemGroup>