Update {Azure.AI.}OpenAI package versions (#187)

Author: stephentoub

dotnet/Directory.Packages.props

@@ -7,7 +7,7 @@
   <ItemGroup>
     <!-- Azure.* -->
     <PackageVersion Include="Azure.AI.Agents.Persistent" Version="1.1.0-beta.3" />
-    <PackageVersion Include="Azure.AI.OpenAI" Version="2.2.0-beta.4" />
+    <PackageVersion Include="Azure.AI.OpenAI" Version="2.2.0-beta.5" />
     <PackageVersion Include="Azure.Identity" Version="1.14.0" />
     <!-- System.* -->
     <PackageVersion Include="System.Linq.Async" Version="6.0.1" />

dotnet/samples/GettingStarted/GettingStarted.csproj

@@ -17,8 +17,7 @@
   <ItemGroup>
     <PackageReference Include="Azure.AI.OpenAI" />
     <PackageReference Include="Azure.Identity" />
-    <PackageReference Include="OpenAI" VersionOverride="2.2.0-beta.4" />
-    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" VersionOverride="9.6.0-preview.1.25310.2"  />
+    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Binder" />
     <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" />