Update autorest.csharp to 3.0.0 beta.20250407.1 (Azure#49253)

Author: live1206

eng/Packages.Data.props

@@ -275,7 +275,7 @@
     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.20250331.1" PrivateAssets="All" />
+    <PackageReference Update="Microsoft.Azure.AutoRest.CSharp" Version="3.0.0-beta.20250407.1" PrivateAssets="All" />
     <PackageReference Update="Azure.ClientSdk.Analyzers" Version="0.1.1-dev.20250310.1" 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 -->

eng/emitter-package-lock.json

@@ -1,23 +1,23 @@
 {
   "main": "dist/src/index.js",
   "dependencies": {
-    "@azure-tools/typespec-csharp": "0.2.0-beta.20250331.1"
+    "@azure-tools/typespec-csharp": "0.2.0-beta.20250407.1"
   },
   "devDependencies": {
-    "@azure-tools/typespec-autorest": "0.53.0",
-    "@azure-tools/typespec-azure-core": "0.53.0",
-    "@azure-tools/typespec-azure-resource-manager": "0.53.0",
-    "@azure-tools/typespec-azure-rulesets": "0.53.0",
-    "@azure-tools/typespec-client-generator-core": "0.53.1",
+    "@azure-tools/typespec-autorest": "0.54.0",
+    "@azure-tools/typespec-azure-core": "0.54.0",
+    "@azure-tools/typespec-azure-resource-manager": "0.54.0",
+    "@azure-tools/typespec-azure-rulesets": "0.54.0",
+    "@azure-tools/typespec-client-generator-core": "0.54.0",
     "@azure-tools/typespec-liftr-base": "0.7.0",
-    "@typespec/compiler": "0.67.2",
-    "@typespec/events": "0.67.1",
-    "@typespec/http": "0.67.1",
-    "@typespec/openapi": "0.67.1",
-    "@typespec/rest": "0.67.1",
-    "@typespec/sse": "0.67.1",
-    "@typespec/streams": "0.67.1",
-    "@typespec/versioning": "0.67.1",
-    "@typespec/xml": "0.67.1"
+    "@typespec/compiler": "1.0.0-rc.0",
+    "@typespec/events": "0.68.0",
+    "@typespec/http": "1.0.0-rc.0",
+    "@typespec/openapi": "1.0.0-rc.0",
+    "@typespec/rest": "0.68.0",
+    "@typespec/sse": "0.68.0",
+    "@typespec/streams": "0.68",
+    "@typespec/versioning": "0.68.0",
+    "@typespec/xml": "0.68.0"
   }
 }