Bump MessagePack from 2.5.168 to 2.5.171

Bumps MessagePack from 2.5.168 to 2.5.171.

---
updated-dependencies:
- dependency-name: MessagePack
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/FluentCommand.Caching/FluentCommand.Caching.csproj

@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MessagePack" Version="2.5.168" />
+    <PackageReference Include="MessagePack" Version="2.5.171" />
     <PackageReference Include="Microsoft.Extensions.Caching.Abstractions" Version="8.0.0" />
   </ItemGroup>