Bump the dotnet group with 1 update

Bumps Microsoft.Extensions.AI.OpenAI from 10.4.1 to 10.6.0

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.AI.OpenAI
  dependency-version: 10.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dotnet
...

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Author: dependabot[bot]

docs/ai/quickstarts/snippets/text-to-image/hosting/TextToImageHosting.csproj

@@ -11,7 +11,7 @@
   <ItemGroup>
     <PackageReference Include="Aspire.Azure.AI.OpenAI" Version="13.0.0-preview.1.25560.3" />
     <PackageReference Include="Azure.AI.OpenAI" Version="2.5.0-beta.1" />
-    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" Version="10.4.1" />
+    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" Version="10.6.0" />
   </ItemGroup>
 
 </Project>