Bump the nuget group with 1 update

Bumps MessagePack from 2.5.108 to 2.5.187

---
updated-dependencies:
- dependency-name: MessagePack
  dependency-version: 2.5.187
  dependency-type: direct:production
  dependency-group: nuget
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

src/Enyim.Caching.Rendezvous/Enyim.Caching.Rendezvous.csproj

@@ -27,6 +27,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="MessagePack" Version="2.5.187" />
     <None Include="..\..\README.md" Pack="true" PackagePath="\" />
   </ItemGroup>