Added az networking api for 2021-05-01 version

eng/mgmt/mgmtmetadata/network_resource-manager.txt

@@ -5,11 +5,11 @@ Generating CSharp code
 Executing AutoRest command
 cmd.exe /c autorest.cmd https://github.com/Azure/azure-rest-api-specs/blob/main/specification/network/resource-manager/readme.md --csharp --version=v2 --reflect-api-versions --use:@microsoft.azure/[email protected] --csharp.output-folder=C:\Projects\generator\azure-sdk-for-net\sdk\network\Microsoft.Azure.Management.Network\src\Generated
 Autorest CSharp Version: 2.3.90
-2021-08-30 00:47:36 UTC
+2021-10-25 03:37:36 UTC
 Azure-rest-api-specs repository information
 GitHub fork: Azure
 Branch:      main
-Commit:      cf675c2dcf645a7b79ff0894b2cc9cb43d35a397
+Commit:      ed2922ddb7c7477a2f08551316cfa61291556354
 AutoRest information
 Requested version: v2
 Bootstrapper version:    [email protected]

sdk/network/Microsoft.Azure.Management.Network/AzSdk.RP.props

@@ -1,7 +1,7 @@
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <!--This file and it's contents are updated at build time moving or editing might result in build failure. Take due deligence while editing this file-->
   <PropertyGroup>
-    <AzureApiTag>Compute_2018-10-01;Network_2021-03-01;</AzureApiTag>
+    <AzureApiTag>Compute_2018-10-01;Network_2021-05-01;</AzureApiTag>
     <PackageTags>$(PackageTags);$(CommonTags);$(AzureApiTag);</PackageTags>
   </PropertyGroup>
 </Project>