.Net: Upgrade AzureAISearch SDK (#12606)

### Description

Upgrade AzureAISearch SDK

### Contribution Checklist

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- [ ] The code builds clean without any errors or warnings
- [ ] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [ ] All unit tests pass, and I have added new tests where possible
- [ ] I didn't break anyone 😄

Author: westey-m

dotnet/Directory.Packages.props

@@ -24,7 +24,7 @@
     <PackageVersion Include="Azure.AI.Projects" Version="1.0.0-beta.9" />
     <PackageVersion Include="Azure.Identity" Version="1.13.2" />
     <PackageVersion Include="Azure.Monitor.OpenTelemetry.Exporter" Version="1.3.0" />
-    <PackageVersion Include="Azure.Search.Documents" Version="11.6.0" />
+    <PackageVersion Include="Azure.Search.Documents" Version="11.6.1" />
     <PackageVersion Include="Community.OData.Linq" Version="2.1.0" />
     <PackageVersion Include="Dapr.Actors" Version="1.14.0" />
     <PackageVersion Include="Dapr.Actors.AspNetCore" Version="1.14.0" />