Add fork repository configuration

[ghost]

Latest improvements:

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[openapi-sdkautomation]

SDK Automation [Logs] (Generated from 211e312, Iteration 1)

No readme.md specification configuration files were found that are associated with the files modified in this pull request.

[AutorestCI]

Automation for azure-sdk-for-python

Unable to detect any generation context from this PR.

[AutorestCI]

Automation for azure-sdk-for-java

Unable to detect any generation context from this PR.

[AutorestCI]

Automation for azure-sdk-for-go

Unable to detect any generation context from this PR.

[azuresdkci]

Can one of the admins verify this patch?