Bump the dotnet group with 1 update (#46878)

Bumps MSTest from 3.9.2 to 3.9.3

---
updated-dependencies:
- dependency-name: MSTest
  dependency-version: 3.9.3
  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/evaluate-ai-responses/TestAI.csproj

@@ -18,7 +18,7 @@
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.6" />
     <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="9.0.6" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
-    <PackageReference Include="MSTest" Version="3.9.2" />
+    <PackageReference Include="MSTest" Version="3.9.3" />
   </ItemGroup>
 
   <ItemGroup>