Changed WebActivity and webhook activity auth to support both AKV and…

[NNara]

… Secrets

Latest improvements:

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[openapi-sdkautomation]

In Testing, Please Ignore

[Logs] (Generated from 60f4598, Iteration 1)

.NET: test-repo-billy/azure-sdk-for-net [Logs] [Diff]

• Microsoft.Azure.Management.DataFactory [Logs] [Instructions] [Generation PR]
  • Microsoft.Azure.Management.DataFactory.4.3.0.nupkg
  • Microsoft.Azure.Management.DataFactory.4.3.0.snupkg

Python: test-repo-billy/azure-sdk-for-python [Logs] [Diff]

• azure-mgmt-datafactory [Logs] [Instructions] [Generation PR]
  • azure-mgmt-datafactory-0.8.0.zip
  • azure_mgmt_datafactory-0.8.0-py2.py3-none-any.whl

Java: test-repo-billy/azure-sdk-for-java [Logs] [Diff]

• datafactory/resource-manager/v2017_09_01_preview [Logs] [Generation PR]
• datafactory/resource-manager/v2018_06_01 [Logs]

Go: test-repo-billy/azure-sdk-for-go [Logs] [Diff]

• datafactory/mgmt/2018-06-01 [Logs] [Instructions] [Generation PR]
  • datafactory.mgmt.2018-06-01.zip
• preview/datafactory/mgmt/2017-09-01-preview [Logs] [Instructions] [Generation PR]
  • preview.datafactory.mgmt.2017-09-01-preview.zip

JavaScript: test-repo-billy/azure-sdk-for-js [Logs] [Diff]

• No packages generated.

[AutorestCI]

Automation for azure-sdk-for-python

A PR has been created for you based on this PR content.

Once this PR will be merged, content will be added to your service PR:
Azure/azure-sdk-for-python#7962

[AutorestCI]

Automation for azure-sdk-for-go

The initial PR has been merged into your service PR:
Azure/azure-sdk-for-go#6144

[azuresdkci]

Can one of the admins verify this patch?

[NNara]

@erich-wang can you please review this PR. The changes in this are not breaking as the type change is to base class. Let me know if you need any other details.