Bump System.Threading.RateLimiting

Bumps the dotnet group in /docs/core/extensions/snippets/ai/ConsoleAI.ToolCalling with 1 update: [System.Threading.RateLimiting](https://github.com/dotnet/runtime).


Updates `System.Threading.RateLimiting` from 10.0.0-preview.2.25163.2 to 10.0.0-preview.3.25171.5
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](https://github.com/dotnet/runtime/commits)

---
updated-dependencies:
- dependency-name: System.Threading.RateLimiting
  dependency-version: 10.0.0-preview.3.25171.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dotnet
...

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

Author: dependabot[bot]

docs/core/extensions/snippets/ai/AI.Shared/AI.Shared.csproj

@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.AI" Version="9.4.0-preview.1.25207.5" />
-    <PackageReference Include="System.Threading.RateLimiting" Version="10.0.0-preview.2.25163.2" />
+    <PackageReference Include="System.Threading.RateLimiting" Version="10.0.0-preview.3.25171.5" />
   </ItemGroup>
 
 </Project>