[DataFactory]Added new features into 4.21.0 (Azure#22611)

* [DataFactory]Added new features into 4.21.0

* update

* update

eng/mgmt/mgmtmetadata/datafactory_resource-manager.txt

@@ -3,12 +3,12 @@ AutoRest installed successfully.
 Commencing code generation
 Generating CSharp code
 Executing AutoRest command
-cmd.exe /c autorest.cmd https://github.com/Azure/azure-rest-api-specs/blob/master/specification/datafactory/resource-manager/readme.md --csharp --version=v2 --reflect-api-versions --tag=package-2018-06 --csharp-sdks-folder=D:\Projects\azure-sdk-for-net\sdk
-2021-06-09 05:49:23 UTC
+cmd.exe /c autorest.cmd https://github.com/Azure/azure-rest-api-specs/blob/master/specification/datafactory/resource-manager/readme.md --csharp --version=v2 --reflect-api-versions --tag=package-2018-06 --csharp-sdks-folder=D:\Projects\azure-sdk-for-net-1\sdk
+2021-07-16 06:45:57 UTC
 Azure-rest-api-specs repository information
 GitHub fork: Azure
 Branch:      master
-Commit:      50eae85eb163a45c70a516cb3ca1225605ca381b
+Commit:      86b65a6f0e0b637a774b177b3206155d990242d4
 AutoRest information
 Requested version: v2
 Bootstrapper version:    autorest@2.0.4413

sdk/datafactory/Microsoft.Azure.Management.DataFactory/src/CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog for the Azure Data Factory V2 .NET SDK
 
+## Version 4.21.0
+###  Feature Additions
+- Added properties pipelineName and pipelineRunId to PipelineRunInvokedBy definition
+- Updated avroCompressionCodec and orcCompressionCodec from string to object
+- Supported UAMI in ADF IR/LS/Activity
+- GitHub bring your own app swagger update for ADF/Synapse Dataplane only
+
 ## Version 4.20.0
 ###  Feature Additions
 - Added disableMetricsCollection in read/wirte properties