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] <support@github.com>

Directory.Packages.props

@@ -23,7 +23,7 @@
         <PackageVersion Include="TypedSignalR.Client.DevTools" Version="1.2.4" />
         <PackageVersion Include="Swashbuckle.AspNetCore" Version="6.6.2" />
         <PackageVersion Include="ConsoleAppFramework" Version="4.2.4" />
-        <PackageVersion Include="MessagePack" Version="2.5.168" />
+        <PackageVersion Include="MessagePack" Version="2.5.171" />
         <PackageVersion Include="MessagePack.AspNetCoreMvcFormatter" Version="2.5.129" />
     </ItemGroup>
 </Project>