Update AutoRest C# version to 3.0.0-beta.20231223.1 (Azure#40879)

Author: azure-sdk

eng/Packages.Data.props

@@ -176,7 +176,7 @@
     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.20231221.1" PrivateAssets="All" />
+    <PackageReference Update="Microsoft.Azure.AutoRest.CSharp" Version="3.0.0-beta.20231223.1" PrivateAssets="All" />
     <PackageReference Update="Azure.ClientSdk.Analyzers" Version="0.1.1-dev.20231116.1" PrivateAssets="All" />
     <PackageReference Update="coverlet.collector" Version="3.2.0" PrivateAssets="All" />
     <PackageReference Update="Microsoft.CodeAnalysis.NetAnalyzers" Version="7.0.4" PrivateAssets="All" />

eng/emitter-package-lock.json

@@ -1,14 +1,14 @@
 {
   "main": "dist/src/index.js",
   "dependencies": {
-    "@azure-tools/typespec-csharp": "0.2.0-beta.20231221.1"
+    "@azure-tools/typespec-csharp": "0.2.0-beta.20231223.1"
   },
   "devDependencies": {
     "@typespec/http": "0.51.0",
-    "@typespec/rest": "0.51.0",
     "@typespec/versioning": "0.51.0",
+    "@azure-tools/typespec-client-generator-core": "0.37.0",
+    "@typespec/rest": "0.51.0",
     "@azure-tools/typespec-azure-core": "0.37.0",
-    "@typespec/compiler": "0.51.0",
-    "@azure-tools/typespec-client-generator-core": "0.37.0"
+    "@typespec/compiler": "0.51.0"
   }
 }