Update AutoRest C# version (Azure#19107)

Co-authored-by: Pavel Krymets <pavel@krymets.com>

Author: azure-sdk

eng/Packages.Data.props

@@ -122,7 +122,7 @@
     All should have PrivateAssets="All" set so they don't become pacakge dependencies
   -->
   <ItemGroup>
-    <PackageReference Update="Microsoft.Azure.AutoRest.CSharp" Version="3.0.0-beta.20210225.1" PrivateAssets="All" />
+    <PackageReference Update="Microsoft.Azure.AutoRest.CSharp" Version="3.0.0-beta.20210301.1" PrivateAssets="All" />
     <PackageReference Update="Azure.ClientSdk.Analyzers" Version="0.1.1-dev.20200929.2" PrivateAssets="All" />
     <PackageReference Update="coverlet.collector" Version="1.3.0" PrivateAssets="All" />
     <PackageReference Update="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="3.3.1" PrivateAssets="All" />

sdk/digitaltwins/Azure.DigitalTwins.Core/src/autorest.md

@@ -17,8 +17,10 @@ require:
 ``` yaml
 directive:
 - from: swagger-document
-  where: $..[?(@.operationId=='DigitalTwins_GetComponent' || @.operationId=='DigitalTwins_GetRelationshipById' || @.operationId=='DigitalTwins_Add' || @.operationId=='DigitalTwins_GetById' || @.operationId=='DigitalTwins_AddRelationship')].responses.200.schema
-  transform: $.format = "binary";
+  where: $..[?(@.operationId=='DigitalTwins_GetComponent' || @.operationId=='DigitalTwins_GetRelationshipById' || @.operationId=='DigitalTwins_Add' || @.operationId=='DigitalTwins_GetById' || @.operationId=='DigitalTwins_AddRelationship')]
+  transform: 
+    $["x-csharp-buffer-response"] = true;
+    $.responses["200"].schema.format = "binary";
 ```
 
 The following directive removes the specified enum values from the swagger so the code generator will expose IfNonMatch header as an option instead of always attaching it to requests with its only default value.

sdk/storage/Azure.Storage.Blobs.Batch/src/ContainerRestClient.cs

@@ -15,6 +15,7 @@ internal HttpMessage CreateSubmitBatchRequest(string containerName, long content
         {
             var message = _pipeline.CreateMessage();
             var request = message.Request;
+            message.BufferResponse = false;
             request.Method = RequestMethod.Post;
             var uri = new RawRequestUriBuilder();
             uri.AppendRaw(url, false);