Bump the dotnet group

Bumps the dotnet group in /docs/ai/quickstarts/snippets/build-chat-app/openai with 2 updates: [Microsoft.Extensions.Configuration](https://github.com/dotnet/runtime) and [Microsoft.Extensions.Configuration.UserSecrets](https://github.com/dotnet/runtime).


Updates `Microsoft.Extensions.Configuration` from 9.0.3 to 9.0.4
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v9.0.3...v9.0.4)

Updates `Microsoft.Extensions.Configuration` from 9.0.3 to 9.0.4
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v9.0.3...v9.0.4)

Updates `Microsoft.Extensions.Configuration.UserSecrets` from 9.0.3 to 9.0.4
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v9.0.3...v9.0.4)

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Configuration
  dependency-version: 9.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dotnet
- dependency-name: Microsoft.Extensions.Configuration
  dependency-version: 9.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dotnet
- dependency-name: Microsoft.Extensions.Configuration.UserSecrets
  dependency-version: 9.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dotnet
...

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

Author: dependabot[bot]

docs/ai/quickstarts/snippets/build-chat-app/openai/ExtensionsOpenAI.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
@@ -9,8 +9,8 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.AI.OpenAI" Version="9.3.0-preview.1.25161.3" />
-    <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.3" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="9.0.3" />
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.4" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="9.0.4" />
   </ItemGroup>
 
 </Project>