[DataFactory]Updated ADF .Net SDK version to 4.21.0 (#15553)

* [DataFactory]Fix the command `Get-AzDataFactoryV2LinkedService` doc issue

* fix commets

* remove doc

* Updated ADF .Net SDK version to 4.21.0

Author: Jingshu923

src/DataFactory/DataFactoryV2.Test/DataFactoryV2.Test.csproj

@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Azure.Management.DataFactory" Version="4.20.0" />
+    <PackageReference Include="Microsoft.Azure.Management.DataFactory" Version="4.21.0" />
     <PackageReference Include="Microsoft.DataTransfer.Gateway.Encryption" Version="4.14.7587.7" />
   </ItemGroup>
 

src/DataFactory/DataFactoryV2/Changelog.md

@@ -18,7 +18,7 @@
         - Additional information about change #1
 -->
 ## Upcoming Release
-* Updated ADF .Net SDK version to 4.20.0
+* Updated ADF .Net SDK version to 4.21.0
 
 ## Version 1.13.0
 * Added Customer Managed Key Encryption to DataFactory

src/DataFactory/DataFactoryV2/DataFactoryV2.csproj

@@ -12,7 +12,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Azure.Management.DataFactory" Version="4.20.0" />
+    <PackageReference Include="Microsoft.Azure.Management.DataFactory" Version="4.21.0" />
     <PackageReference Include="Microsoft.DataTransfer.Gateway.Encryption" Version="4.14.7587.7" />
   </ItemGroup>