Update AutoRest C# version to 3.0.0-beta.20220901.3 (Azure#30902)

* Update AutoRest C# version to 3.0.0-beta.20220901.3

* fix `CodeGenMember` attribute value case

After the PR Azure/autorest.csharp#2652, the attribute value comparision is case-sensitive.

* Change autorest version back to 20220901.2

* fix unnecessary `CodeGenOverride`

Co-authored-by: azure-sdk <azuresdk@microsoft.com>

Author: archerzz

eng/Packages.Data.props

@@ -160,7 +160,7 @@
     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.20220829.2" PrivateAssets="All" />
+    <PackageReference Update="Microsoft.Azure.AutoRest.CSharp" Version="3.0.0-beta.20220901.3" PrivateAssets="All" />
     <PackageReference Update="Azure.ClientSdk.Analyzers" Version="0.1.1-dev.20220111.2" PrivateAssets="All" />
     <PackageReference Update="coverlet.collector" Version="1.3.0" PrivateAssets="All" />
     <PackageReference Update="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="3.3.1" PrivateAssets="All" />