build(deps): bump Microsoft.CodeAnalysis.CSharp.Workspaces

Bumps the all group with 1 update: [Microsoft.CodeAnalysis.CSharp.Workspaces](https://github.com/dotnet/roslyn).


Updates `Microsoft.CodeAnalysis.CSharp.Workspaces` from 4.10.0 to 4.11.0
- [Release notes](https://github.com/dotnet/roslyn/releases)
- [Changelog](https://github.com/dotnet/roslyn/blob/main/docs/Breaking%20API%20Changes.md)
- [Commits](https://github.com/dotnet/roslyn/commits)

---
updated-dependencies:
- dependency-name: Microsoft.CodeAnalysis.CSharp.Workspaces
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all
...

Signed-off-by: dependabot[bot] <support@github.com>

src/Directory.Packages.props

@@ -30,7 +30,7 @@
     <PackageVersion Include="LangChain.Providers.Ollama" Version="0.15.1-dev.78" />
     <PackageVersion Include="LangChain.Providers.OpenAI" Version="0.15.1-dev.78" />
     <PackageVersion Include="LangChain.Providers.OpenRouter" Version="0.15.1-dev.78" />
-    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.10.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.11.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.PublicApiAnalyzers" Version="3.3.4" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageVersion Include="Moq" Version="4.20.70" />