Bump the dotnet group with 1 update

Bumps Microsoft.Extensions.AI from 9.7.0 to 9.7.1

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.AI
  dependency-version: 9.7.1
  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/how-to/snippets/content-filtering/AIContentFiltering.csproj

@@ -10,7 +10,7 @@
   <ItemGroup>
     <PackageReference Include="Azure.AI.OpenAI" />
     <PackageReference Include="Azure.Identity" Version="1.14.2" />
-    <PackageReference Include="Microsoft.Extensions.AI" Version="9.7.0" />
+    <PackageReference Include="Microsoft.Extensions.AI" Version="9.7.1" />
     <PackageReference Include="Microsoft.Extensions.AI.OpenAI" Version="9.4.0-preview.1.25207.5" />
   </ItemGroup>