Bump Azure.AI.Agents.Persistent from 1.2.0-beta.5 to 1.2.0-beta.6 (microsoft#1409)

---
updated-dependencies:
- dependency-name: Azure.AI.Agents.Persistent
  dependency-version: 1.2.0-beta.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

dotnet/Directory.Packages.props

@@ -17,7 +17,7 @@
     <PackageVersion Include="Aspire.Microsoft.Azure.Cosmos" Version="$(AspireAppHostSdkVersion)" />
     <PackageVersion Include="CommunityToolkit.Aspire.OllamaSharp" Version="9.8.0" />
     <!-- Azure.* -->
-    <PackageVersion Include="Azure.AI.Agents.Persistent" Version="1.2.0-beta.5" />
+    <PackageVersion Include="Azure.AI.Agents.Persistent" Version="1.2.0-beta.6" />
     <PackageVersion Include="Azure.AI.OpenAI" Version="2.5.0-beta.1" />
     <PackageVersion Include="Azure.Identity" Version="1.17.0" />
     <PackageVersion Include="Azure.Monitor.OpenTelemetry.Exporter" Version="1.4.0" />