Updated libs in testing project.

Author: Anton Vorontsov

tests/RabbitMQ.Client.Core.DependencyInjection.Tests/RabbitMQ.Client.Core.DependencyInjection.Tests.csproj

@@ -10,10 +10,10 @@
     </ItemGroup>
 
     <ItemGroup>
-      <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
-      <PackageReference Include="Moq" Version="4.14.1" />
+      <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.7.1" />
+      <PackageReference Include="Moq" Version="4.14.5" />
       <PackageReference Include="xunit" Version="2.4.1" />
-      <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />
+      <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
     </ItemGroup>
 
 </Project>