Update AutoRest C# version to 3.0.0-beta.20250309.1 (Azure#48656)

* Update Generator Version 3.0.0-beta.20250309.1

* Update SDK codes co_da_1

* update the commit id

---------

Co-authored-by: Arcturus Zhang <[email protected]>

Author: azure-sdk

eng/Packages.Data.props

@@ -250,7 +250,7 @@
     All should have PrivateAssets="All" set so they don't become package dependencies
   -->
   <ItemGroup>
-    <PackageReference Update="Microsoft.Azure.AutoRest.CSharp" Version="3.0.0-beta.20250306.2" PrivateAssets="All" />
+    <PackageReference Update="Microsoft.Azure.AutoRest.CSharp" Version="3.0.0-beta.20250309.1" PrivateAssets="All" />
     <PackageReference Update="Azure.ClientSdk.Analyzers" Version="0.1.1-dev.20250227.2" PrivateAssets="All" />
     <PackageReference Update="coverlet.collector" Version="3.2.0" PrivateAssets="All" />
     <!-- Note: Upgrading the .NET SDK version needs to be synchronized with the autorest.csharp repository -->