Bump the dotnet group with 1 update (#54065)

Bumps Microsoft.Extensions.Caching.Memory from 10.0.7 to 10.0.8

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Caching.Memory
  dependency-version: 10.0.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dotnet
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/ai/snippets/microsoft-extensions-ai/ConsoleAI.CustomEmbeddingsMiddle/ConsoleAI.CustomEmbeddingsMiddle.csproj

@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="10.0.7" />
+    <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="10.0.8" />
     <PackageReference Include="OllamaSharp" Version="5.4.25" />
     <PackageReference Include="OpenTelemetry.Exporter.Console" Version="1.15.3" />
     <ProjectReference Include="..\AI.Shared\AI.Shared.csproj" />