Bump Microsoft.Extensions.AI.Abstractions from 10.3.0 to 10.4.1

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.AI.Abstractions
  dependency-version: 10.4.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]

Directory.Packages.props

@@ -12,7 +12,7 @@
     <PackageVersion Include="Azure.Identity" Version="1.19.0" />
     <PackageVersion Include="Azure.AI.OpenAI" Version="2.8.0-beta.1" />
     <PackageVersion Include="Azure.AI.Inference" Version="1.0.0-beta.5" />
-    <PackageVersion Include="Microsoft.Extensions.AI.Abstractions" Version="10.3.0" />
+    <PackageVersion Include="Microsoft.Extensions.AI.Abstractions" Version="10.4.1" />
     <PackageVersion Include="Microsoft.Extensions.AI.AzureAIInference" Version="10.0.0-preview.1.25559.3" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.3" />
     <!-- Third-party AI SDKs -->