Bump the dotnet group with 3 updates

Bumps Azure.Identity from 1.14.2 to 1.16.0
Bumps Microsoft.Extensions.Configuration from 9.0.7 to 9.0.9
Bumps Microsoft.Extensions.Configuration.UserSecrets from 9.0.7 to 9.0.9

---
updated-dependencies:
- dependency-name: Azure.Identity
  dependency-version: 1.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dotnet
- dependency-name: Microsoft.Extensions.Configuration
  dependency-version: 9.0.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dotnet
- dependency-name: Microsoft.Extensions.Configuration.UserSecrets
  dependency-version: 9.0.9
  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/azure-openai/ChatAppAI.csproj

@@ -9,11 +9,11 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Azure.Identity" Version="1.14.2" />
+    <PackageReference Include="Azure.Identity" Version="1.16.0" />
     <PackageReference Include="Azure.AI.OpenAI" Version="2.1.0" />
     <PackageReference Include="Microsoft.Extensions.AI.OpenAI" Version="9.4.0-preview.1.25207.5" />
-    <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.7" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="9.0.7" />
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.9" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="9.0.9" />
 
   </ItemGroup>