Add Aspire.Hosting.Azure.AppContainers package

Added a new package reference for `Aspire.Hosting.Azure.AppContainers` (version 9.5.0) to the `Directory.Packages.props` file. This introduces a dependency to support functionality related to Azure App Containers.

Author: christiannagel

src/Directory.Packages.props

@@ -14,6 +14,7 @@
     <PackageVersion Include="Aspire.Hosting.AppHost" Version="9.5.0" />
     <PackageVersion Include="Aspire.Hosting.Azure" Version="9.5.0" />
     <PackageVersion Include="Aspire.Hosting.Azure.AppConfiguration" Version="9.5.0" />
+    <PackageVersion Include="Aspire.Hosting.Azure.AppContainers" Version="9.5.0" />
     <PackageVersion Include="Aspire.Hosting.Azure.ApplicationInsights" Version="9.5.0" />
     <PackageVersion Include="Aspire.Hosting.Azure.CosmosDB" Version="9.5.0" />
     <PackageVersion Include="Aspire.Hosting.Azure.EventHubs" Version="9.5.0" />