Bump Microsoft.Extensions.Caching.Memory (#45830)

Bumps the dotnet group in /docs/core/extensions/snippets/ai/ConsoleAI.CustomEmbeddingsMiddle with 1 update: [Microsoft.Extensions.Caching.Memory](https://github.com/dotnet/runtime).


Updates `Microsoft.Extensions.Caching.Memory` from 10.0.0-preview.2.25163.2 to 10.0.0-preview.3.25171.5
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](https://github.com/dotnet/runtime/commits)

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Caching.Memory
  dependency-version: 10.0.0-preview.3.25171.5
  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/core/extensions/snippets/ai/ConsoleAI.CustomEmbeddingsMiddle/ConsoleAI.CustomEmbeddingsMiddle.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="10.0.0-preview.2.25163.2" />
+    <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="10.0.0-preview.3.25171.5" />
     <PackageReference Include="OpenTelemetry.Exporter.Console" Version="1.11.2" />
     <ProjectReference Include="..\AI.Shared\AI.Shared.csproj" />
   </ItemGroup>