Bump the dotnet group with 1 update (#47372)

Bumps Microsoft.Extensions.AI.Abstractions from 9.6.0 to 9.7.0

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.AI.Abstractions
  dependency-version: 9.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  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/advanced/snippets/sample-implementations/Implementations.csproj

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.AI.Abstractions" Version="9.6.0" />
+    <PackageReference Include="Microsoft.Extensions.AI.Abstractions" Version="9.7.0" />
   </ItemGroup>
 
 </Project>