[Hubs] Update Azure PowerShell version for deployment scripts

[flanakin]

⚠️ Problem

Deployment scripts are returning this warning:

WARNING: You're using Az version 8.0.0. The latest version of Az is 12.2.0. Upgrade your Az modules using the following commands:

• Update-Module Az -WhatIf -- Simulate updating your Az modules.
• Update-Module Az -- Update your Az modules.

There will be breaking changes from 8.0.0 to 12.2.0. Open https://go.microsoft.com/fwlink/?linkid=2241373 and check the details.

🛠️ Solution

Update deployment scripts to use the latest Azure PowerShell release.

🙋‍♀️ Ask for the community

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