Confluent.Kafka nuget package upgrade 2.13.0 -> 2.13.2

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: stidsborg

ServiceBuses/Kafka/Cleipnir.Kafka.Tests/Cleipnir.Kafka.Tests.csproj

@@ -9,7 +9,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Confluent.Kafka" Version="2.13.0" />
+        <PackageReference Include="Confluent.Kafka" Version="2.13.2" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
         <PackageReference Include="MSTest" Version="4.1.0" />
     </ItemGroup>