Upgrading core-lib-azure version

All Submissions:

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• [YES] I have added an explanation of what changes in this merge do and why we should include it?
• [NA] I have updated the documentation accordingly.
• [NA] I have added tests to cover my changes.
• [YES] All new and existing tests passed.
• [YES] My code follows the code style of this project.
• [NO] I ran lint checks locally prior to submission.

What is the current behavior?

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Not using the latest version of dependency core-lib-azure (current version: 0.0.11)

(Work Item: https://dev.azure.com/msazure/One/_workitems/edit/8305171)

What is the new behavior?

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• Using the latest version of core-lib-azure (0.0.29).
• TenantFactoryImpl class from core-lib-azure is being used and local implementation is deleted.

Does this introduce a breaking change?

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• [NO]

Any relevant logs, error output, etc?

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(If it’s long, please paste to https://ghostbin.com/ and insert the link here.)

Other information

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