Bump the dotnet group with 4 updates (#48526)

Bumps Azure.Identity from 1.14.2 to 1.16.0
Bumps Microsoft.Extensions.AI from 9.7.1 to 9.9.0
Bumps Microsoft.Extensions.Configuration from 9.0.8 to 9.0.9
Bumps Microsoft.Extensions.Configuration.UserSecrets from 9.0.8 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.AI
  dependency-version: 9.9.0
  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]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/ai/quickstarts/snippets/structured-output/SOChat.csproj

@@ -10,11 +10,11 @@
 
   <ItemGroup>
     <PackageReference Include="Azure.AI.OpenAI" Version="2.1.0" />
-    <PackageReference Include="Azure.Identity" Version="1.14.2" />
-    <PackageReference Include="Microsoft.Extensions.AI" Version="9.7.1" />
+    <PackageReference Include="Azure.Identity" Version="1.16.0" />
+    <PackageReference Include="Microsoft.Extensions.AI" Version="9.9.0" />
     <PackageReference Include="Microsoft.Extensions.AI.OpenAI" Version="9.4.0-preview.1.25207.5" />
-    <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.8" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="9.0.8" />
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.9" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="9.0.9" />
   </ItemGroup>
 
 </Project>