Update dependency BitFaster.Caching to 2.6.1 (#1847)

Co-authored-by: dependencyupdates[bot] <218638057+dependencyupdates[bot]@users.noreply.github.com>

Author: dependencyupdates[bot]

src/NServiceBus.Transport.RabbitMQ/NServiceBus.Transport.RabbitMQ.csproj

@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="BitFaster.Caching" Version="2.6.0" />
+    <PackageReference Include="BitFaster.Caching" Version="2.6.1" />
     <PackageReference Include="NServiceBus" Version="10.2.8" />
     <PackageReference Include="RabbitMQ.Client" Version="7.2.2" />
   </ItemGroup>